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Programmers Must Take Vitamin D

123 points by tomse 14y ago

guiomie 14y ago
Thank you so much.
devgutt 14y ago
Interesting post but without any source
leed25d 14y ago
I'll have a pizza, please. Yes... marinara sauce, cheese and all the anchovies and sardines that you can fit on it.
bmurphy1976 14y ago
I have a better idea. Go outside. I have a garden. I have a deck. I have two kids who I take to the pool regularly. I have a lawn that needs maintenance. I like to go outside. Another thing. I work during the day. Problem solved.
- qxcv 14y ago
  But for the love of $DEITY, please wear adequate sun protection. At the very least that means a hat and sunscreen, but you probably want to be using long sleeved clothing and sunglasses if you're outside for an extended period of time. Vitamin D deficiency is bad, but skin cancer is worse.
  - mmagin 14y ago
    Well, UVB exposure is what causes the process of vitamin D synthesis in the skin, wearing sunscreen is going to prevent that.
  - Empact 14y ago
    Vitamin D has anti-cancer effects which apply more generally than skin cancer. In studies which assess all-cause mortality relative to UV-B exposure, higher UV-B exposure is correlated with lower all-cause mortality. That is, more skin cancer yes, but also less death because of improved overall health and lower overall cancer risks. Importantly, this is not an endorsement of artificial tanning, which correlates with greater all-cause mortality. E.g.: http://www.ncbi.nlm.nih.gov/pubmed/21297041 http://www.ncbi.nlm.nih.gov/pubmed/21297041
  - cincinnatus 14y ago
    So dont go out at noon, but sunscreen turns out to be a bad strategy. Some (most) may be more carcinogenic than the sun they block.
    - simplexion 14y ago
      Citation please.
  - refurb 14y ago
    "If you're fair skinned, experts say going outside for 10 minutes in the midday sun—in shorts and a tank top with no sunscreen—will give you enough radiation to produce about 10,000 international units of the vitamin." You don't need a lot of sun exposure to get your body to produce enough vitamin D.
    - ChuckMcM 14y ago
      As a person of Scottish descent I joke that I can get a sun burn by holding a picture of the Sun near my skin :-)
      - pawelwentpawel 14y ago
        I'm surprised why they don't use those "sunlight lamps" in Scotland yet. I guess whisky does a better job ;)
- danielharan 14y ago
  That's only solved part of the year if you're too far North. Also, you may need to wear less clothing and stay out longer than you'd expect.
- yen223 14y ago
  As a guy who lives in a tropical, humid area, bringing my laptop outdoors to work may not always be practical.
- deleted 14y ago
  [deleted]
- tomjen3 14y ago
  That might work for you, but I got into computers because it is the only thing I like.
blackhole 14y ago
Taking supplements without assessing what your current daily intake of Vitamin D is can be dangerous; it is surprisingly easy to go over the recommended dosage, and there is such a thing as overdosing on vitamins [1]. You don't just get Vitamin D from the sun - it is also present in eggs, some seafood, and certain fortified dairy products. Because of this, you may not need to take a daily supplement at all. Programmers are at an increased risk for vitamin D deficiency, but you should ALWAYS examine your diet to assess your current vitamin D intake before deciding to take a supplement. [1] http://www.consumerreports.org/cro/magazine/2012/09/10-surprising-dangers-of-vitamins-and-supplements/index.htm http://www.consumerreports.org/cro/magazine/2012/09/10-surpr...
- dspeyer 14y ago
  Calculating my vitamin D intake sounds difficult and unreliable. Is there any way to measure my vitamin D levels by examining my body?
  - deleted 14y ago
    [deleted]
  - dhughes 14y ago
    Pretty much if you live in a northern part of the northern hemisphere (above 49 degrees latitude) you need a vitamin D supplement. I recall reading about a researcher in Boston (I think) who said after about mid October you could be sprawled buck naked on a rooftop all day and not get enough vitamin D from (brief winter) sun exposure. http://www.cbc.ca/news/health/story/2008/05/16/f-health-vitamin-d.html http://www.cbc.ca/news/health/story/2008/05/16/f-health-vita...
- GFKjunior 14y ago
  That link was terrible and had no useful information pertaining to vitamin over usage or its effects. I did not know it was possible, but here is a much better link those interested. http://www.webmd.com/food-recipes/features/effects-of-taking-too-many-vitamins http://www.webmd.com/food-recipes/features/effects-of-taking...
- 14y ago
wamatt 14y ago
Most Americans are deficient in Vitamin D, programmer or not. [1]. One of the few supplements that are actually is a good idea, but don't overdo it, as it becomes toxic at higher levels. You would not want to take more than 10 000IU per day and I'd probably recommend 2000IU-4000IU as a baseline. If you can afford the time and expense, the best is to close the loop and take a 25(OH)D blood test. You would want to have a serum level of between 30-70ng/mL. Given the studies I've read over a number of years I aim for around 55ng/mL, but there are differing views on this, so by all means do your own research. [1] http://archinte.jamanetwork.com/article.aspx?articleid=414878 http://archinte.jamanetwork.com/article.aspx?articleid=41487...
- deleted 14y ago
  [deleted]
dllthomas 14y ago
Oily fish is on my pizza, some of the time!
patorjk 14y ago
This problem actually happened to me. A few years ago I started feeling incredibly lethargic. I would wake up with no energy. It was like sleep had done nothing for me. I didn't know what was wrong, but I felt horrible. After around two weeks I went to the doctor. A blood test was done and it showed I had low vitamin D (26 ng/mL). After about a week of supplementation I felt normal again. It's easy to forget to go outside, and if you're a programmer and feel low energy, vitamin D is definitely something to look into.
- Erwin 14y ago
  Personally I was so low down in D I also had neuropathic symptoms -- like your hand or parts of face falling asleep, light-headedness and muscle twitches and tremors. That all went even after some D vitamin injections.
- quicksilver03 14y ago
  26 ng/mL is not that bad actually... I once was tested at 12 ng/mL, and that was only after I asked for it when I fractured my left wrist for the second time in one year.
- carbocation 14y ago
  20 is the lower limit of normal per US guidelines, though some specialty societies have their low threshold set at 30. At any rate, you are unlikely to have any calcium metabolism deficits at 26 and it's unlikely to have been a cause of any symptom in an otherwise healthy adult.
  - patorjk 14y ago
    Hrm, I may have the "ng/mL" part wrong then, or I may just be sensitive to low levels. All I remember is the number and that he said I was low. Supplementation definitely resolved my problems though.
stusmall 14y ago
I always thought that mushrooms were a good source of vitamin D, ends up it a slightly different form and isn't a suitable source. Thanks for the heads up!
lgleason 14y ago
That is one of the reasons why I set up my workstation on my deck when I am working from home and the weather is nice.
awolf 14y ago
There are many different types of vitamin D synthesized in our bodies which require sunlight to form. The many varieties of D are used in an enormous amount of different chemical processes in our bodies- many of which are quite complex and not fully understood. Vitamin D supplements consist of (mostly) one type of Vitamin D. People are typically deficient in that specific type so mild supplementation is a reasonable option. Just don't kid yourself into thinking that taking Vitamin D is a replacement for spending adequate time outdoors. Compared to the first 100 million years of our species existence, hiding indoors all day is a relatively new invention. It will be a while before science produces a silver bullet in gelcap form.
- paulsutter 14y ago
  Could you provide some references? I'm really interested to learn more EDIT: I'm looking for backup to the claim that sunlight provides something that you don't get in a vitamin D3 supplement. It seems reasonable but has a big impact on the solution.
  - 001sky 14y ago
    [5] forms (vitamers) of vitamin D exist (see table). The two major forms are vitamin D2 or ergocalciferol, and vitamin D3 or cholecalciferol, vitamin D without a subscript refers to either D2 or D3 or both. These are known collectively as calciferol....Vitamin D3 (cholecalciferol) is produced by ultraviolet irradiation (UV) of its precursor 7-dehydrocholesterol. This molecule occurs naturally in the skin of animals and in milk. Vitamin D3 can be made by exposure of the skin to UV, or by exposing milk directly to UV (one commercial method). ------ Vitamin D3 (cholecalciferol) is produced industrially by exposing 7-dehydrocholesterol to UVB light, followed by purification.[143] The 7-dehydrocholesterol is a natural substance in wool grease (lanolin) from sheep or other woolly animals. Vitamin D2 (ergocalciferol) is produced in a similar way using ergosterol from yeast or mushrooms as a starting material.[143] Tl;dr of 5 types & only D2 and D3 are commercial avail --Wikipedia: http://en.wikipedia.org/wiki/Vitamin_D http://en.wikipedia.org/wiki/Vitamin_D
    - postfuturist 14y ago
bane 14y ago
I actually have to avoid Vitamin D. I have a disorder (Hypercalcaemia) that causes me to build up calcium in my blood. Vitamin D can rapidly improve the body's ability to absorb calcium (hence Vitamin D enriched milk). Too much calcium in your blood can lead to various physical nervous disorders (I get facial ticks in the muscles around my eyes) but can also result in various psychologically similar problems like depression, anxiety, insomnia, fatigue and various other problems. In severe cases can lead to coma and death as it can interfere with heart rhythms and other central nervous functions. It's a real pain in the tail as the number of food products fortified with calcium and vitamin D is remarkably high.
- m1chael 14y ago
  Have you read much about vitamins K2 and A with reference to your condition? Supplementation or otherwise insuring adequate intake of K2/A might be of benefit for you in reducing vit D toxicity among other things. These papers are good references: http://www.vitamincfoundation.org/pdfs/vitaminKarticle.pdf http://www.vitamincfoundation.org/pdfs/vitaminKarticle.pdf http://cl.ly/2y3a3e3s0P43 http://cl.ly/2y3a3e3s0P43
  - bane 14y ago
    I have not...but I will take a look now! Thanks!
- petercooper 14y ago
  How did you find out you have this? I've persistently had quite a few of the symptoms but nothing comes up on tests. In experimenting, I gave up all dairy which has helped a lot so I've simply been assuming I'm lactose intolerant..
  - beagle3 14y ago
    Milk has a lot of other things which may trigger your allergies other than lactose. You might be lactose tolerant, but milk intolerant in general. Furthermore, "Milk", quite surprisingly, is not well defined either. I've switched to RonnyBrook recently (NY local, organic, grass fed, and I get it within two days of leaving the cow), and it's a world of difference: The taste, my body's reaction (My lungs and sinuses would often respond to milk by clogging and excreting stuff, they don't anymore). I haven't been able to find high quality sources (peer reviewed, etc) but I've read claims that the nutrient and vitamin profile of milk from grass fed vs. corn fed cows is completely different - which I don't really doubt - although I'm waiting for some high quality analysis for the exact difference.
cincinnatus 14y ago
Lots of interesting podcasts (techie and also story and news oriented) + player + walk or run in sun = winning.
Empact 14y ago
I supplement with 5000iu per day, and check my blood levels regularly. Even with supplementation far exceeding governmental recommendations, My blood levels have never exceeded 70 ng/mL, which is well within the health range of 30 - 100 ng/mL. My advice is to get yourself tested, supplement, and continue testing. http://wellnessfx.com http://wellnessfx.com is a great service for minimum effort monitoring. Alternatively you can use cash-based services like this to order easily and without a doctor: http://www.mdlabtests.com/Vitamin-Tests/081950-Vitamin-D-25-Hydroxy.html http://www.mdlabtests.com/Vitamin-Tests/081950-Vitamin-D-25-...
- graeme 14y ago
  I cannot wait for Wellness FX to come to Canada. Here doctors look at you funny if you want to track biomarkers. "You're young, problems don't occur until you get old". As if they've never heard of prevention.
  - GigabyteCoin 14y ago
    Apparently they cost $199, and are only available in a few states right now. Not all of the USA. With all health care free of charge in Canada, I think it will be a while yet before they cross the border unfortunately. I have been for many physicals but have never had my blood checked for levels of anything really.
    - ramblerman 14y ago
      I think it's incorrect to use free health care as a "competitor" for this product. Here in Belgium (with free and awesome healthcare) people still pay for organic food, supplements, gym memberships and many other things to stay healthy. So I would assume there would be a market for this too. I am speaking anecdotally though, like you.
      - MDS100 14y ago
        They are competitors. Both do blood tests. It depends on how much your current healthcare provider would charge and what kinds of tests they'd run. They do the same thing (but possibly give you the results in a more enjoyable/easier to understand interface). There will be quite some people that would pay more for better treatment/faster service. Or because doctors refuse the tests.
will_work4tears 14y ago
Well... I'm a web developer, not a "real" programmer, and I don't code at night. I did until I got married, but no longer. Now that I have a kid, it's suicide to do it more than once a week.
mistercow 14y ago
This is missing something, but I can't put my finger on it. Oh yeah: citations.
- jrockway 14y ago
  This is another anecdote point: my mom is a nutritional biochemist who has done research on vitamins for much of her life. She always tells me to take Vitamin D and that nearly everyone is deficient because we don't go outside enough (and live in high latitudes). Not science, but the author is on to something, I think. If you doubt it, get your blood tested and see what your doctor says. If you don't want to get tested, take a conservative supplement.
  - mistercow 14y ago
    I already take a basic multivitamin, but my concern is not that I'm trying to make a personal decision based on this article; I make my health decisions based on more research than that. My concern is that the article makes a strong empirical claim that it does not back up: >However, it also inhibits vitamin D receptors, and as such decreases the body’s uptake of this-much-needed-vitamin. In fact, I can find a couple of studies sort of supporting this, but they have to do with a very specific vitamin D receptor in a very specific subpopulation (elderly women). Some people are going to read this and they're going to assimilate into their "probably true facts" bank the idea that caffeine just generally keeps you from absorbing vitamin D, and then they're going to repeat that fact and it will spread, and we'll have a whole new common belief about caffeine which is probably false.
  - beagle3 14y ago
    Does she have any take on B3 (niacin / niacinamide) you can share? My own collection of anecdotes and understanding is that a nontrivial part of the western population is B3 deficient as well - not to the levels that cause pellagra to appear, but nevertheless way below optimal levels. Also, from my collection of anecdotes and some reading, the most popular form of B3 sold these days (inositol hexanicotinate) is useless (0% bioavailability), which kind makes reporting and statistics unreliable, because it is actually confused with the available forms (which have different properties between them)
holri 14y ago
That is doctoring on the symptom, not the cause. Go outside. You do not only need Vitamin D, you also need fresh air, green and exercise. You can not get this with pills. In the long run you save time, because of longer life (and hacking) and reduced illness (better hacking).
- bascule 14y ago
  I thought it was funny that this blog post didn't mention getting outside as a potential solution. That said, it's not like it's a dichotomy: I take a daily vitamin D supplement, try to eat as much catfish and salmon as I can, and try to get out in the sun as much as possible. That said, getting out in the sun is a fairly nuanced debate. Most dermatologists will tell you not to, because of the risk of skin cancer, and because of the lack of peer-reviewed research showing that the benefits of skin-based vitamin D production outweigh the potential for skin cancer: http://www.nytimes.com/2012/04/24/science/sunscreens-and-vitamin-d.html http://www.nytimes.com/2012/04/24/science/sunscreens-and-vit... Wearing sunscreen will inhibit vitamin D production, so getting some sun while wearing high-SPF sunscreen is not going to help you as much as unprotected exposure (per the dermatologist in the aforementioned article) So the question becomes: do you believe the "vitamin D hypothesis" that vitamin D deficiency was the driving force behind the evolution of human skin color? The hypothesis is that northern Europeans evolved lower melanin levels in their skin through a combination of high latitudes and a diet deficient in natural sources of vitamin D: http://anthrogenetics.wordpress.com/2011/06/29/a-support-for-vitamin-d-hypothesis-of-skin-color-evolution-a-correlation-between-african-genetic-ancestry-and-blood-vitamin-d-concentration/ http://anthrogenetics.wordpress.com/2011/06/29/a-support-for... So the question of whether you should go out in the sun (unprotected) in order to generate vitamin D becomes a question of whether you are more worried about the potential health complications of vitamin D deficiency or skin cancer. Choose wisely!
  - hcarvalhoalves 14y ago
    You don't get skin cancer like you get a tan, unless you're a vampire, or older. Just go outside early in the morning or late afternoon, when UV levels are lower. Don't stay toasting on 12:00 PM sun like people going to the beach do. We're talking about 10-30 minutes of sun exposition here.
ricardobeat 14y ago
Got me worried for a sec, but I eat a lot of tuna/sardine sandwiches and salads :)
- sukuriant 14y ago
  Get checked anyway. I eat sushi quite frequently, and prefer fish over other meats; and I was still very, very low, somewhere around 12.
simplexion 14y ago
I thought the evidence for the benefits of taking vitamin tablets (for anyone not deficient) was non-existent. I'm also under the belief that diet modification works much better than vitamin tablets For deficiencies.
- gwern 14y ago
  Multivitamins != vitamin D.
postfuturist 14y ago
I was tested and was deficient, now I take it every day and my levels are normal. Two buddies of mine got tested later and were also deficient, dangerously low even. We live in Portland, Oregon, so sunlight exposure is generally low, but I'd say it's a good idea for anyone to get tested.
Imagenuity 14y ago
I started taking D3 last fall, and it has made a big difference in how I feel. I started with 3600IU for a few months and when I started feeling more energetic and cheerful dropped down to 2600 (2x 1000IU + 600IU & calcium). I get outside quite a bit, but in Vancouver WA the skies are overcast a lot and the low sun angle means you can't get enough for vitamin D needs. I also take a probiotic, an anti-oxidant, a fish oil and a green tea supplement. My diet is mostly paleo. My ancestry is northern European. For reference, you need to take 50,000IU for several months to develop toxicity (ref: http://www.mayoclinic.com/health/vitamin-d-toxicity/AN02008 http://www.mayoclinic.com/health/vitamin-d-toxicity/AN02008). If you are pale skinned and don't spend a lot of time in the sun, you are much more likely to be deficient. If you really want to see where you're at, have your doctor do a blood test, or go get a micro-nutrient test http://www.spectracell.com/mnt/ http://www.spectracell.com/mnt/
deleted 14y ago
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deleted 14y ago
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Zenst 14y ago
Blanket declarations that involve any form of medication is just wrong. Sure alot of people don't get enough vitamin D and that may be more true in the feild of IT than others, but anybody who isolates themselfs and dosn't get out to grab a little bit of sun here and there will be a probably candidate for low vitamin D. Now if you are one of those people who find themselfs driven to go take extra vitamins tthen you need to know a couple of things: Vitamins are balanced in that you need one to enable another to do another thing and it's not as clear cut as dropping a few multi vits every day. It's better to com0liment your food intake with the occasional multi vitamin instead of a ritrual daily overdose turning your pee bright orange. The other aspect is that if you are low on vitimin D and start taking supliments then you will get aches and pains which feel like your bones are bruised in places. DONT PANIC - this is a sighn that you were low on vitamin D and it is your body adjusting, it is normal and nothing to worry about beyond confirming you were low in that vitamin group. But if you are that worried about lack of any vitamin then it is always best to compliment via dietary needs and for vitamin D you cant beat a nice walk outside at the right times. Like any form of consumption be it vitamins, food, forum posts etc - the golden rule is moderation, moderation and moderation.
Egregore 14y ago
In the winter I'm taking D2, because it's the vitamin prescribed to children and so less toxic.
progrock 14y ago
I think I trashed my teeth through drinking juice and a lack of sunshine.
Devilboy 14y ago
Every day at about lunch time I go lie on the roof in the sun for 10 minutes - doctor's orders. I also take D supplements but that alone was not enough to get my levels back to the normal range so I have to get some actual sun as often as I can too. It's a bit of a 'damned if you do, damned if you don't' situation here in Australia: Approximately two in three Australians will be diagnosed with skin cancer before the age of 70, while approximately one out of three Australians have vitamin D deficiency...
- MDS100 14y ago
  Solution: Take a supplement and get a blood test for 25-OH D3. (MD in Training here with a keen interest and practical experience with D Deficency)
- beagle3 14y ago
  How much supplements do you take? RDAs are in the range of 400-1000 IU, but apparently everyone I know who was actually tested and found deficient was asked to do 100mg/kg of body weight (meaning 7000-9000 IU), so it seems the RDA is off by an order of magnitude - perhaps established for a baseline of people who live in a sunny place and hang out a lot.
  - dhughes 14y ago
    If you have dark skin you need more vitamin D, if you're obese you need more, if you're elderly you need more and if you are covered up in the sun you need more vitamin D. 7000 to 9000 IU sounds high but 1000 IU sounds way too low.
- steffenfrost 14y ago
  You need to lay out during solar noon in the summer. In your 20s you can produce about 1k IU per minute for full body exposure, however, that goes down with age. The sun's zenith has to be 45 degrees or higher in the sky for you to produce Vitamin D. A small spectrum of UVB (285 to 315 nm) is responsible for the subcutaneous photochemical synthesis of cholecalciferol, an important hormone of the endocrine system that we know as Vitamin D. Thus you want to avoid morning sun and late afternoon sun, and forget about it during the winter. So if your shadow is great than you are tall, avoid the sun. You can google the time for solar noon in your local area. For example, in San Francisco, solar noon in for September 15th is 1:05 pm at which time the sun's zenith will only be 55 degrees. My runs in shorts and no shirt is soon coming to end for this season. http://www.timeanddate.com/worldclock/astronomy.html?n=224 http://www.timeanddate.com/worldclock/astronomy.html?n=224 Regarding the 'damned if you do, damned if you don't' situation, don't worry about it. Melanoma is an office worker's disease, people who vocationally work outside have a higher risk of melanoma. Huh? Lower Vitamin D levels increases your risk of melanoma. Go figure, and sun screen block UVB, not UVA. So the rise in skin cancer might be due to increase in the use of sun screen, not sun exposure per se. More people get skin cancer, the more shrill the dermatologist become about using sun screen, and so the cat bites itself in the tail. More on that here: Skin Cancer/Sunscreen - the Dilemma http://www.youtube.com/watch?v=eeXtGHSt-5o&feature=share&list=PL997D20130A1069B8 http://www.youtube.com/watch?v=eeXtGHSt-5o&feature=share... My youtube playlist on Vitamin D: http://www.youtube.com/playlist?list=PL997D20130A1069B8 http://www.youtube.com/playlist?list=PL997D20130A1069B8
jokull 14y ago
A high quality source of vitamin D is liver. Cod liver oil is a great way to supplement your diet. In Iceland you can get it in small sardine type cans and spread the liver on crackers.
- carbocation 14y ago
  It does contain some vitamin D, but it also contains about 10x as much vitamin A. Hypervitaminosis A is a real problem. I would not think it particularly safe to use cod liver oil for vitamin D supplementation because of this risk, especially when other supplements exist.
- Daniel_Newby 14y ago
  The vitamin A in liver may be bad for pregnant women and small children.
drhowarddrfine 14y ago
Go outside in the sun for 15 minutes. Done. No need for supplements or anything else. Why does this guy think that coding at night means you'll be deficient? If you code during the day instead does that change anything? No. If you code at night but bask in the sun during the day are you still deficient? No. Another nonsense article.
streptomycin 14y ago
Well, that's a pretty content-free article. And there are lots of posts here, with anecdotes and opinions... but nobody is talking about hard data, science, and (most importantly) clinical trials. Is that because it hasn't been proven through a real clinical trial that "programmers must take Vitamin D"?
- ralmeida 14y ago
  The article says something too broad to be true (that if you're a programmer, you need to take vitamin D). However, a clinical trial would be overkill: you might need a clinical trial to determine if, say, cell phones are bad for you, but you don't need a clinical test to determine that 100% of people who stop breathing die. Where do you draw the line? Also, it spends a great deal of effort to make a statistically meaningful clinical test. This could all be solved if, instead of prescribing supplements based on profession, the article's tone were more like "Hey, vitamin D defficiency is a thing and your lifestyle favors it. Go get yourself checked out and mention this to your doctor."
  - streptomycin 14y ago
    Of course there is a line to be drawn, but I think that dietary supplements certainly should be tested in clinical trials. Otherwise, there is no way to know if they work or not. This is typically how drugs/supplements are evaluated.
    - ralmeida 14y ago
      Sure, but clinically testing a supplement to see if it works is not the same thing as doing a clinical test to conclude that taking a "working" vitamin D supplement is good for you if you have vitamin D defficiency.
      - streptomycin 14y ago
        Those would be different stages of clinical trials.
Fando 14y ago
Go outside!
Riesling 14y ago
I would love to write code outside. I wish laptops with ebook reader like screens would exist. It would not even bother me if they were only black and white.
- perekk 14y ago
  1) JB a kindle 2) install some sort of ssh 3) ??? 4) PROFIT
PawelD81 14y ago
I've been drinking recently a ridiculous amount of caffeine every day. (5-6 coffees + redbulls ) And at the same time I eat everyday tuna sandwich and salmons for dinner every third day. ( +snack a lot of bananas ). Regardless I've never been a real fan of this kind of food, so it must have been a natural body adaptation to low vitamins D level.
tthomas48 14y ago
Also milk. Iced Latte. Caffeine and Vitamin D.
ky3 14y ago
No one has mentioned reptile lamps yet? Medical UVB is expensive and probably can't be bought without a license of some sort. Reptile lamps you can buy from a local pet store or online. But nothing beats the real sun (and greenery and fresh air), obviously. Given that the discovery of Vitamin D, heck the whole concept of vitamins even, is relatively recent, we really don't know what else we don't know.
cat67 14y ago
I took 10,000 ui a day for over a year to build my vit d level up to 176. I have multiple sclerosis. My goal is 200, have done a tone of research on the topic, toxicity levels, etc... For 12 years in a row, have had a relapse every winter, past winter didn't have one. One could say this is a coincedence, I say no. In the summer I am always out in the sun alday, mostly every day, shorts, t-shirt, etc... For some reason, my body doesn't absorb the vit d good. I have fair skin, that tans very well. Anyways, I just wanted to share my knowledge to help others.

123 points by tomse 14y ago

guiomie 14y ago

Thank you so much.

devgutt 14y ago

Interesting post but without any source

leed25d 14y ago

I'll have a pizza, please. Yes... marinara sauce, cheese and all the anchovies and sardines that you can fit on it.

bmurphy1976 14y ago

I have a better idea. Go outside. I have a garden. I have a deck. I have two kids who I take to the pool regularly. I have a lawn that needs maintenance. I like to go outside. Another thing. I work during the day. Problem solved.

qxcv 14y ago
But for the love of $DEITY, please wear adequate sun protection. At the very least that means a hat and sunscreen, but you probably want to be using long sleeved clothing and sunglasses if you're outside for an extended period of time. Vitamin D deficiency is bad, but skin cancer is worse.
- mmagin 14y ago
  Well, UVB exposure is what causes the process of vitamin D synthesis in the skin, wearing sunscreen is going to prevent that.
- Empact 14y ago
  Vitamin D has anti-cancer effects which apply more generally than skin cancer. In studies which assess all-cause mortality relative to UV-B exposure, higher UV-B exposure is correlated with lower all-cause mortality. That is, more skin cancer yes, but also less death because of improved overall health and lower overall cancer risks. Importantly, this is not an endorsement of artificial tanning, which correlates with greater all-cause mortality. E.g.: http://www.ncbi.nlm.nih.gov/pubmed/21297041 http://www.ncbi.nlm.nih.gov/pubmed/21297041
- cincinnatus 14y ago
  So dont go out at noon, but sunscreen turns out to be a bad strategy. Some (most) may be more carcinogenic than the sun they block.
  - simplexion 14y ago
    Citation please.
- refurb 14y ago
  "If you're fair skinned, experts say going outside for 10 minutes in the midday sun—in shorts and a tank top with no sunscreen—will give you enough radiation to produce about 10,000 international units of the vitamin." You don't need a lot of sun exposure to get your body to produce enough vitamin D.
  - ChuckMcM 14y ago
    As a person of Scottish descent I joke that I can get a sun burn by holding a picture of the Sun near my skin :-)
    - pawelwentpawel 14y ago
      I'm surprised why they don't use those "sunlight lamps" in Scotland yet. I guess whisky does a better job ;)
danielharan 14y ago
That's only solved part of the year if you're too far North. Also, you may need to wear less clothing and stay out longer than you'd expect.
yen223 14y ago
As a guy who lives in a tropical, humid area, bringing my laptop outdoors to work may not always be practical.
deleted 14y ago
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tomjen3 14y ago
That might work for you, but I got into computers because it is the only thing I like.

blackhole 14y ago

Taking supplements without assessing what your current daily intake of Vitamin D is can be dangerous; it is surprisingly easy to go over the recommended dosage, and there is such a thing as overdosing on vitamins [1]. You don't just get Vitamin D from the sun - it is also present in eggs, some seafood, and certain fortified dairy products. Because of this, you may not need to take a daily supplement at all. Programmers are at an increased risk for vitamin D deficiency, but you should ALWAYS examine your diet to assess your current vitamin D intake before deciding to take a supplement. [1] http://www.consumerreports.org/cro/magazine/2012/09/10-surprising-dangers-of-vitamins-and-supplements/index.htm http://www.consumerreports.org/cro/magazine/2012/09/10-surpr...

dspeyer 14y ago
Calculating my vitamin D intake sounds difficult and unreliable. Is there any way to measure my vitamin D levels by examining my body?
- deleted 14y ago
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- dhughes 14y ago
  Pretty much if you live in a northern part of the northern hemisphere (above 49 degrees latitude) you need a vitamin D supplement. I recall reading about a researcher in Boston (I think) who said after about mid October you could be sprawled buck naked on a rooftop all day and not get enough vitamin D from (brief winter) sun exposure. http://www.cbc.ca/news/health/story/2008/05/16/f-health-vitamin-d.html http://www.cbc.ca/news/health/story/2008/05/16/f-health-vita...
GFKjunior 14y ago
That link was terrible and had no useful information pertaining to vitamin over usage or its effects. I did not know it was possible, but here is a much better link those interested. http://www.webmd.com/food-recipes/features/effects-of-taking-too-many-vitamins http://www.webmd.com/food-recipes/features/effects-of-taking...
14y ago

wamatt 14y ago

Most Americans are deficient in Vitamin D, programmer or not. [1]. One of the few supplements that are actually is a good idea, but don't overdo it, as it becomes toxic at higher levels. You would not want to take more than 10 000IU per day and I'd probably recommend 2000IU-4000IU as a baseline. If you can afford the time and expense, the best is to close the loop and take a 25(OH)D blood test. You would want to have a serum level of between 30-70ng/mL. Given the studies I've read over a number of years I aim for around 55ng/mL, but there are differing views on this, so by all means do your own research. [1] http://archinte.jamanetwork.com/article.aspx?articleid=414878 http://archinte.jamanetwork.com/article.aspx?articleid=41487...

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dllthomas 14y ago

Oily fish is on my pizza, some of the time!

patorjk 14y ago

This problem actually happened to me. A few years ago I started feeling incredibly lethargic. I would wake up with no energy. It was like sleep had done nothing for me. I didn't know what was wrong, but I felt horrible. After around two weeks I went to the doctor. A blood test was done and it showed I had low vitamin D (26 ng/mL). After about a week of supplementation I felt normal again. It's easy to forget to go outside, and if you're a programmer and feel low energy, vitamin D is definitely something to look into.

Erwin 14y ago
Personally I was so low down in D I also had neuropathic symptoms -- like your hand or parts of face falling asleep, light-headedness and muscle twitches and tremors. That all went even after some D vitamin injections.
quicksilver03 14y ago
26 ng/mL is not that bad actually... I once was tested at 12 ng/mL, and that was only after I asked for it when I fractured my left wrist for the second time in one year.
carbocation 14y ago
20 is the lower limit of normal per US guidelines, though some specialty societies have their low threshold set at 30. At any rate, you are unlikely to have any calcium metabolism deficits at 26 and it's unlikely to have been a cause of any symptom in an otherwise healthy adult.
- patorjk 14y ago
  Hrm, I may have the "ng/mL" part wrong then, or I may just be sensitive to low levels. All I remember is the number and that he said I was low. Supplementation definitely resolved my problems though.

stusmall 14y ago

I always thought that mushrooms were a good source of vitamin D, ends up it a slightly different form and isn't a suitable source. Thanks for the heads up!

lgleason 14y ago

That is one of the reasons why I set up my workstation on my deck when I am working from home and the weather is nice.

awolf 14y ago

There are many different types of vitamin D synthesized in our bodies which require sunlight to form. The many varieties of D are used in an enormous amount of different chemical processes in our bodies- many of which are quite complex and not fully understood. Vitamin D supplements consist of (mostly) one type of Vitamin D. People are typically deficient in that specific type so mild supplementation is a reasonable option. Just don't kid yourself into thinking that taking Vitamin D is a replacement for spending adequate time outdoors. Compared to the first 100 million years of our species existence, hiding indoors all day is a relatively new invention. It will be a while before science produces a silver bullet in gelcap form.

paulsutter 14y ago
Could you provide some references? I'm really interested to learn more EDIT: I'm looking for backup to the claim that sunlight provides something that you don't get in a vitamin D3 supplement. It seems reasonable but has a big impact on the solution.
- 001sky 14y ago
  [5] forms (vitamers) of vitamin D exist (see table). The two major forms are vitamin D2 or ergocalciferol, and vitamin D3 or cholecalciferol, vitamin D without a subscript refers to either D2 or D3 or both. These are known collectively as calciferol....Vitamin D3 (cholecalciferol) is produced by ultraviolet irradiation (UV) of its precursor 7-dehydrocholesterol. This molecule occurs naturally in the skin of animals and in milk. Vitamin D3 can be made by exposure of the skin to UV, or by exposing milk directly to UV (one commercial method). ------ Vitamin D3 (cholecalciferol) is produced industrially by exposing 7-dehydrocholesterol to UVB light, followed by purification.[143] The 7-dehydrocholesterol is a natural substance in wool grease (lanolin) from sheep or other woolly animals. Vitamin D2 (ergocalciferol) is produced in a similar way using ergosterol from yeast or mushrooms as a starting material.[143] Tl;dr of 5 types & only D2 and D3 are commercial avail --Wikipedia: http://en.wikipedia.org/wiki/Vitamin_D http://en.wikipedia.org/wiki/Vitamin_D
  - postfuturist 14y ago

bane 14y ago

I actually have to avoid Vitamin D. I have a disorder (Hypercalcaemia) that causes me to build up calcium in my blood. Vitamin D can rapidly improve the body's ability to absorb calcium (hence Vitamin D enriched milk). Too much calcium in your blood can lead to various physical nervous disorders (I get facial ticks in the muscles around my eyes) but can also result in various psychologically similar problems like depression, anxiety, insomnia, fatigue and various other problems. In severe cases can lead to coma and death as it can interfere with heart rhythms and other central nervous functions. It's a real pain in the tail as the number of food products fortified with calcium and vitamin D is remarkably high.

m1chael 14y ago
Have you read much about vitamins K2 and A with reference to your condition? Supplementation or otherwise insuring adequate intake of K2/A might be of benefit for you in reducing vit D toxicity among other things. These papers are good references: http://www.vitamincfoundation.org/pdfs/vitaminKarticle.pdf http://www.vitamincfoundation.org/pdfs/vitaminKarticle.pdf http://cl.ly/2y3a3e3s0P43 http://cl.ly/2y3a3e3s0P43
- bane 14y ago
  I have not...but I will take a look now! Thanks!
petercooper 14y ago
How did you find out you have this? I've persistently had quite a few of the symptoms but nothing comes up on tests. In experimenting, I gave up all dairy which has helped a lot so I've simply been assuming I'm lactose intolerant..
- beagle3 14y ago
  Milk has a lot of other things which may trigger your allergies other than lactose. You might be lactose tolerant, but milk intolerant in general. Furthermore, "Milk", quite surprisingly, is not well defined either. I've switched to RonnyBrook recently (NY local, organic, grass fed, and I get it within two days of leaving the cow), and it's a world of difference: The taste, my body's reaction (My lungs and sinuses would often respond to milk by clogging and excreting stuff, they don't anymore). I haven't been able to find high quality sources (peer reviewed, etc) but I've read claims that the nutrient and vitamin profile of milk from grass fed vs. corn fed cows is completely different - which I don't really doubt - although I'm waiting for some high quality analysis for the exact difference.

cincinnatus 14y ago

Lots of interesting podcasts (techie and also story and news oriented) + player + walk or run in sun = winning.

Empact 14y ago

I supplement with 5000iu per day, and check my blood levels regularly. Even with supplementation far exceeding governmental recommendations, My blood levels have never exceeded 70 ng/mL, which is well within the health range of 30 - 100 ng/mL. My advice is to get yourself tested, supplement, and continue testing. http://wellnessfx.com http://wellnessfx.com is a great service for minimum effort monitoring. Alternatively you can use cash-based services like this to order easily and without a doctor: http://www.mdlabtests.com/Vitamin-Tests/081950-Vitamin-D-25-Hydroxy.html http://www.mdlabtests.com/Vitamin-Tests/081950-Vitamin-D-25-...

graeme 14y ago
I cannot wait for Wellness FX to come to Canada. Here doctors look at you funny if you want to track biomarkers. "You're young, problems don't occur until you get old". As if they've never heard of prevention.
- GigabyteCoin 14y ago
  Apparently they cost $199, and are only available in a few states right now. Not all of the USA. With all health care free of charge in Canada, I think it will be a while yet before they cross the border unfortunately. I have been for many physicals but have never had my blood checked for levels of anything really.
  - ramblerman 14y ago
    I think it's incorrect to use free health care as a "competitor" for this product. Here in Belgium (with free and awesome healthcare) people still pay for organic food, supplements, gym memberships and many other things to stay healthy. So I would assume there would be a market for this too. I am speaking anecdotally though, like you.
    - MDS100 14y ago
      They are competitors. Both do blood tests. It depends on how much your current healthcare provider would charge and what kinds of tests they'd run. They do the same thing (but possibly give you the results in a more enjoyable/easier to understand interface). There will be quite some people that would pay more for better treatment/faster service. Or because doctors refuse the tests.

will_work4tears 14y ago

Well... I'm a web developer, not a "real" programmer, and I don't code at night. I did until I got married, but no longer. Now that I have a kid, it's suicide to do it more than once a week.

mistercow 14y ago

This is missing something, but I can't put my finger on it. Oh yeah: citations.

jrockway 14y ago
This is another anecdote point: my mom is a nutritional biochemist who has done research on vitamins for much of her life. She always tells me to take Vitamin D and that nearly everyone is deficient because we don't go outside enough (and live in high latitudes). Not science, but the author is on to something, I think. If you doubt it, get your blood tested and see what your doctor says. If you don't want to get tested, take a conservative supplement.
- mistercow 14y ago
  I already take a basic multivitamin, but my concern is not that I'm trying to make a personal decision based on this article; I make my health decisions based on more research than that. My concern is that the article makes a strong empirical claim that it does not back up: >However, it also inhibits vitamin D receptors, and as such decreases the body’s uptake of this-much-needed-vitamin. In fact, I can find a couple of studies sort of supporting this, but they have to do with a very specific vitamin D receptor in a very specific subpopulation (elderly women). Some people are going to read this and they're going to assimilate into their "probably true facts" bank the idea that caffeine just generally keeps you from absorbing vitamin D, and then they're going to repeat that fact and it will spread, and we'll have a whole new common belief about caffeine which is probably false.
- beagle3 14y ago
  Does she have any take on B3 (niacin / niacinamide) you can share? My own collection of anecdotes and understanding is that a nontrivial part of the western population is B3 deficient as well - not to the levels that cause pellagra to appear, but nevertheless way below optimal levels. Also, from my collection of anecdotes and some reading, the most popular form of B3 sold these days (inositol hexanicotinate) is useless (0% bioavailability), which kind makes reporting and statistics unreliable, because it is actually confused with the available forms (which have different properties between them)

holri 14y ago

That is doctoring on the symptom, not the cause. Go outside. You do not only need Vitamin D, you also need fresh air, green and exercise. You can not get this with pills. In the long run you save time, because of longer life (and hacking) and reduced illness (better hacking).

bascule 14y ago
I thought it was funny that this blog post didn't mention getting outside as a potential solution. That said, it's not like it's a dichotomy: I take a daily vitamin D supplement, try to eat as much catfish and salmon as I can, and try to get out in the sun as much as possible. That said, getting out in the sun is a fairly nuanced debate. Most dermatologists will tell you not to, because of the risk of skin cancer, and because of the lack of peer-reviewed research showing that the benefits of skin-based vitamin D production outweigh the potential for skin cancer: http://www.nytimes.com/2012/04/24/science/sunscreens-and-vitamin-d.html http://www.nytimes.com/2012/04/24/science/sunscreens-and-vit... Wearing sunscreen will inhibit vitamin D production, so getting some sun while wearing high-SPF sunscreen is not going to help you as much as unprotected exposure (per the dermatologist in the aforementioned article) So the question becomes: do you believe the "vitamin D hypothesis" that vitamin D deficiency was the driving force behind the evolution of human skin color? The hypothesis is that northern Europeans evolved lower melanin levels in their skin through a combination of high latitudes and a diet deficient in natural sources of vitamin D: http://anthrogenetics.wordpress.com/2011/06/29/a-support-for-vitamin-d-hypothesis-of-skin-color-evolution-a-correlation-between-african-genetic-ancestry-and-blood-vitamin-d-concentration/ http://anthrogenetics.wordpress.com/2011/06/29/a-support-for... So the question of whether you should go out in the sun (unprotected) in order to generate vitamin D becomes a question of whether you are more worried about the potential health complications of vitamin D deficiency or skin cancer. Choose wisely!
- hcarvalhoalves 14y ago
  You don't get skin cancer like you get a tan, unless you're a vampire, or older. Just go outside early in the morning or late afternoon, when UV levels are lower. Don't stay toasting on 12:00 PM sun like people going to the beach do. We're talking about 10-30 minutes of sun exposition here.

ricardobeat 14y ago

Got me worried for a sec, but I eat a lot of tuna/sardine sandwiches and salads :)

sukuriant 14y ago
Get checked anyway. I eat sushi quite frequently, and prefer fish over other meats; and I was still very, very low, somewhere around 12.

simplexion 14y ago

I thought the evidence for the benefits of taking vitamin tablets (for anyone not deficient) was non-existent. I'm also under the belief that diet modification works much better than vitamin tablets For deficiencies.

gwern 14y ago
Multivitamins != vitamin D.

postfuturist 14y ago

I was tested and was deficient, now I take it every day and my levels are normal. Two buddies of mine got tested later and were also deficient, dangerously low even. We live in Portland, Oregon, so sunlight exposure is generally low, but I'd say it's a good idea for anyone to get tested.

Imagenuity 14y ago

I started taking D3 last fall, and it has made a big difference in how I feel. I started with 3600IU for a few months and when I started feeling more energetic and cheerful dropped down to 2600 (2x 1000IU + 600IU & calcium). I get outside quite a bit, but in Vancouver WA the skies are overcast a lot and the low sun angle means you can't get enough for vitamin D needs. I also take a probiotic, an anti-oxidant, a fish oil and a green tea supplement. My diet is mostly paleo. My ancestry is northern European. For reference, you need to take 50,000IU for several months to develop toxicity (ref: http://www.mayoclinic.com/health/vitamin-d-toxicity/AN02008 http://www.mayoclinic.com/health/vitamin-d-toxicity/AN02008). If you are pale skinned and don't spend a lot of time in the sun, you are much more likely to be deficient. If you really want to see where you're at, have your doctor do a blood test, or go get a micro-nutrient test http://www.spectracell.com/mnt/ http://www.spectracell.com/mnt/

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Zenst 14y ago

Blanket declarations that involve any form of medication is just wrong. Sure alot of people don't get enough vitamin D and that may be more true in the feild of IT than others, but anybody who isolates themselfs and dosn't get out to grab a little bit of sun here and there will be a probably candidate for low vitamin D. Now if you are one of those people who find themselfs driven to go take extra vitamins tthen you need to know a couple of things: Vitamins are balanced in that you need one to enable another to do another thing and it's not as clear cut as dropping a few multi vits every day. It's better to com0liment your food intake with the occasional multi vitamin instead of a ritrual daily overdose turning your pee bright orange. The other aspect is that if you are low on vitimin D and start taking supliments then you will get aches and pains which feel like your bones are bruised in places. DONT PANIC - this is a sighn that you were low on vitamin D and it is your body adjusting, it is normal and nothing to worry about beyond confirming you were low in that vitamin group. But if you are that worried about lack of any vitamin then it is always best to compliment via dietary needs and for vitamin D you cant beat a nice walk outside at the right times. Like any form of consumption be it vitamins, food, forum posts etc - the golden rule is moderation, moderation and moderation.

Egregore 14y ago

In the winter I'm taking D2, because it's the vitamin prescribed to children and so less toxic.

progrock 14y ago

I think I trashed my teeth through drinking juice and a lack of sunshine.

Devilboy 14y ago

Every day at about lunch time I go lie on the roof in the sun for 10 minutes - doctor's orders. I also take D supplements but that alone was not enough to get my levels back to the normal range so I have to get some actual sun as often as I can too. It's a bit of a 'damned if you do, damned if you don't' situation here in Australia: Approximately two in three Australians will be diagnosed with skin cancer before the age of 70, while approximately one out of three Australians have vitamin D deficiency...

MDS100 14y ago
Solution: Take a supplement and get a blood test for 25-OH D3. (MD in Training here with a keen interest and practical experience with D Deficency)
beagle3 14y ago
How much supplements do you take? RDAs are in the range of 400-1000 IU, but apparently everyone I know who was actually tested and found deficient was asked to do 100mg/kg of body weight (meaning 7000-9000 IU), so it seems the RDA is off by an order of magnitude - perhaps established for a baseline of people who live in a sunny place and hang out a lot.
- dhughes 14y ago
  If you have dark skin you need more vitamin D, if you're obese you need more, if you're elderly you need more and if you are covered up in the sun you need more vitamin D. 7000 to 9000 IU sounds high but 1000 IU sounds way too low.
steffenfrost 14y ago
You need to lay out during solar noon in the summer. In your 20s you can produce about 1k IU per minute for full body exposure, however, that goes down with age. The sun's zenith has to be 45 degrees or higher in the sky for you to produce Vitamin D. A small spectrum of UVB (285 to 315 nm) is responsible for the subcutaneous photochemical synthesis of cholecalciferol, an important hormone of the endocrine system that we know as Vitamin D. Thus you want to avoid morning sun and late afternoon sun, and forget about it during the winter. So if your shadow is great than you are tall, avoid the sun. You can google the time for solar noon in your local area. For example, in San Francisco, solar noon in for September 15th is 1:05 pm at which time the sun's zenith will only be 55 degrees. My runs in shorts and no shirt is soon coming to end for this season. http://www.timeanddate.com/worldclock/astronomy.html?n=224 http://www.timeanddate.com/worldclock/astronomy.html?n=224 Regarding the 'damned if you do, damned if you don't' situation, don't worry about it. Melanoma is an office worker's disease, people who vocationally work outside have a higher risk of melanoma. Huh? Lower Vitamin D levels increases your risk of melanoma. Go figure, and sun screen block UVB, not UVA. So the rise in skin cancer might be due to increase in the use of sun screen, not sun exposure per se. More people get skin cancer, the more shrill the dermatologist become about using sun screen, and so the cat bites itself in the tail. More on that here: Skin Cancer/Sunscreen - the Dilemma http://www.youtube.com/watch?v=eeXtGHSt-5o&feature=share&list=PL997D20130A1069B8 http://www.youtube.com/watch?v=eeXtGHSt-5o&feature=share... My youtube playlist on Vitamin D: http://www.youtube.com/playlist?list=PL997D20130A1069B8 http://www.youtube.com/playlist?list=PL997D20130A1069B8

jokull 14y ago

A high quality source of vitamin D is liver. Cod liver oil is a great way to supplement your diet. In Iceland you can get it in small sardine type cans and spread the liver on crackers.

carbocation 14y ago
It does contain some vitamin D, but it also contains about 10x as much vitamin A. Hypervitaminosis A is a real problem. I would not think it particularly safe to use cod liver oil for vitamin D supplementation because of this risk, especially when other supplements exist.
Daniel_Newby 14y ago
The vitamin A in liver may be bad for pregnant women and small children.

drhowarddrfine 14y ago

Go outside in the sun for 15 minutes. Done. No need for supplements or anything else. Why does this guy think that coding at night means you'll be deficient? If you code during the day instead does that change anything? No. If you code at night but bask in the sun during the day are you still deficient? No. Another nonsense article.

streptomycin 14y ago

Well, that's a pretty content-free article. And there are lots of posts here, with anecdotes and opinions... but nobody is talking about hard data, science, and (most importantly) clinical trials. Is that because it hasn't been proven through a real clinical trial that "programmers must take Vitamin D"?

ralmeida 14y ago
The article says something too broad to be true (that if you're a programmer, you need to take vitamin D). However, a clinical trial would be overkill: you might need a clinical trial to determine if, say, cell phones are bad for you, but you don't need a clinical test to determine that 100% of people who stop breathing die. Where do you draw the line? Also, it spends a great deal of effort to make a statistically meaningful clinical test. This could all be solved if, instead of prescribing supplements based on profession, the article's tone were more like "Hey, vitamin D defficiency is a thing and your lifestyle favors it. Go get yourself checked out and mention this to your doctor."
- streptomycin 14y ago
  Of course there is a line to be drawn, but I think that dietary supplements certainly should be tested in clinical trials. Otherwise, there is no way to know if they work or not. This is typically how drugs/supplements are evaluated.
  - ralmeida 14y ago
    Sure, but clinically testing a supplement to see if it works is not the same thing as doing a clinical test to conclude that taking a "working" vitamin D supplement is good for you if you have vitamin D defficiency.
    - streptomycin 14y ago
      Those would be different stages of clinical trials.

Fando 14y ago

Go outside!

Riesling 14y ago

I would love to write code outside. I wish laptops with ebook reader like screens would exist. It would not even bother me if they were only black and white.

perekk 14y ago
1) JB a kindle 2) install some sort of ssh 3) ??? 4) PROFIT

PawelD81 14y ago

I've been drinking recently a ridiculous amount of caffeine every day. (5-6 coffees + redbulls ) And at the same time I eat everyday tuna sandwich and salmons for dinner every third day. ( +snack a lot of bananas ). Regardless I've never been a real fan of this kind of food, so it must have been a natural body adaptation to low vitamins D level.

tthomas48 14y ago

Also milk. Iced Latte. Caffeine and Vitamin D.

ky3 14y ago

No one has mentioned reptile lamps yet? Medical UVB is expensive and probably can't be bought without a license of some sort. Reptile lamps you can buy from a local pet store or online. But nothing beats the real sun (and greenery and fresh air), obviously. Given that the discovery of Vitamin D, heck the whole concept of vitamins even, is relatively recent, we really don't know what else we don't know.

cat67 14y ago

I took 10,000 ui a day for over a year to build my vit d level up to 176. I have multiple sclerosis. My goal is 200, have done a tone of research on the topic, toxicity levels, etc... For 12 years in a row, have had a relapse every winter, past winter didn't have one. One could say this is a coincedence, I say no. In the summer I am always out in the sun alday, mostly every day, shorts, t-shirt, etc... For some reason, my body doesn't absorb the vit d good. I have fair skin, that tans very well. Anyways, I just wanted to share my knowledge to help others.