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Ketosis also "mimics fastings", the main metabolic difference being nutritional ketosis is 0.5 - 3 mmol/L, while fasting is 3 - 5 mmol/L (betahydroxybuterate in

Ketosis also "mimics fastings", the main metabolic difference being nutritional ketosis is 0.5 - 3 mmol/L, while fasting is 3 - 5 mmol/L (betahydroxybuterate in the serum). The benefits of ketosis may also add longevity, possibly with similar mechanisms to fasting. It's likely intermittent fasting put the subjects of the study into mild ketosis. Bottom line: Ketosis may have benefits similar to fasting in terms of aging, but without having to fast :)

IndianAstronaut 11y ago
>Ketosis also "mimics fastings", Can you please provide a source on this?
- deleted 11y ago
  [deleted]
- Balgair 11y ago
  https://en.wikipedia.org/?title=Ketosis https://en.wikipedia.org/?title=Ketosis "During the usual overnight fast, the body's metabolism naturally switches into ketosis, and will switch back to glycolysis after a carbohydrate-rich meal. Longer-term ketosis may result from fasting or staying on a low-carbohydrate diet, and deliberately induced ketosis serves as a medical intervention for intractable epilepsy.[6] In glycolysis, higher levels of insulin promote storage of body fat and block release of fat from adipose tissues, while in ketosis, fat reserves are readily released and consumed.[5][7] For this reason, ketosis is sometimes referred to as the body's "fat burning" mode"
exelius 11y ago
Can confirm, keto diets burn weight like a motherfucker. They're also reasonably easy to maintain, since it's pretty easy to order a cheeseburger without a bun and eat it with a knife and fork. Also, bacon and avocado are a delicious combination, and keto says they are ok. I dropped 40 lbs in under 6 months on a keto diet, and built muscle while doing it. But I had to stop the keto diet because it makes me stupid when I'm on it. I'm not talking the "keto fog" that you experience for a few days when your body is adjusting; operating in extended ketosis for me correlated with a marked decline in mental capacity. I went from being a rockstar knowledge worker to someone who couldn't do simple arithmetic. And my mental faculties would return within an hour if I ate a bagel. Ketones (what your body burns for energy when there are no sugars available) don't penetrate to the brain, so your body produces sugars from protein through gluconeogenesis, but it wasn't really enough to keep me functioning at 100%. Also, you don't want to be frequently transitioning in/out of ketosis; it gives you horrible headaches.
- MCRed 11y ago
  Did you try taking a multi-vitamin? I've seen advice to get magnesium and potassium into your system, so I started using lite-salt. In the early days of my diet I was always tired (slept for 24 hours) and started having a constant headache-- this is after getting into ketosis and being there for a couple weeks. But the lite salt cured it within a day. (I wasn't able to get the right form of magnesium yet, but have been also taking multi-vitamins.)
  - exelius 11y ago
    Yeah, I did the lite salt thing, I was taking vitamins, etc. I physically felt fine; but I was noticeably dumber. Also, the relief after eating something really carb-heavy was pretty immediate.
- kafkaesque 11y ago
  I had the same experience. I cut off all noodles/pastas and breads, and ate no pastries/sweets/chocolates. I went from lifting a few times a week for three months to once a week and my brain could not have a rational thought. I felt like my sugar levels were down all the time some how, so even after eating meats, eggs, vegetables, and dressings, my body would feel light and I couldn't get full. I couldn't work on my computer a lot and basically was on autopilot. It was kind of bizarre because I was eating 4-6 eggs a day and my body started feeling really weird. I think all the protein was messing with my body when it was trying to break it down.
- hrehhf 11y ago
  > Ketones (what your body burns for energy when there are no sugars available) don't penetrate to the brain [0] says that this is false. Ketones do go into the brain and the brain does use them for fuel. [0]http://proteinpower.com/drmike/2007/05/22/metabolism-and-ketosis/ http://proteinpower.com/drmike/2007/05/22/metabolism-and-ket...
  - exelius 11y ago
    I believe you -- most of what I know about keto I found on reddit so I treat it with a grain of salt. But I also know how it made me feel, and I can't do the diet and hold down the job I currently have.
MCRed 11y ago
I've combined the two. I've been doing an IF of 8/16 where I only eat within 8 hours. Whenever I have lunch, I then have 8 hours to have dinner. I don't have the same schedule each day so sometimes I might start the next day late and fast for 20 hours. However, since I've been doing this for a couple weeks, I recently stopped eating the second meal. I just wasn't hungry. I don't have the psychological stress- because I'm allowed to eat as much as I want (of the keto diet, so within the 20g of carbs, but I snack on celery) during those 8 hours so if I got hungry I could do it. It's just when the 8 hours are up I decide if I'm hungry or not. As someone who is very overweight, the idea of not being hungry is quite shocking. (I don't think it's due to the IF, I think it's due to the ketogenic diet I'm on.) But if I keep to this, then eating once a day would give me about 23 hours of fasting. But given my uneven schedules many times that's been over 24 hours, though some days it's more like 20 hours. The point being that it isn't really much of an issue- depends on how I'm feeling and about half the time I'm not hungry at the 24 hour mark. Of course I do drink a lot of water, and I use sugar free "water enhancers" to help. So, as a consequence I am drinking quite a bit more water than I ever have in my life. (probably 1-2 gallons.) This is an anecdote, so I don't know if it's ketosis, or what that's the effect. I wanted to do everything right this time around so I'm doing keto, IF, calorie restriction, and portion controls. (I pre-make my meals. So I heat up a fixed sized meal, and have to go get a second meal if I'm still hungry, which I did a few times in the early days.) I'm also learning to cook really great BBQ in the slow cooker. Yesterday all I ate was some ribs. They were wonderful. (Memphis style, no sauce.) Here's the recipe: Rub: Memphis Dust: http://amazingribs.com/recipes/rubs_pastes_marinades_and_brines/meatheads_memphis_dust.html http://amazingribs.com/recipes/rubs_pastes_marinades_and_bri... 1. Cut the membrane off of the back of the ribs (or at least pierce it.) 2. Coat the ribs with salt. (I use lite- salt to increase my potassium intake). 3. Coat the ribs with Memphis Dust- pretty thick (I use a shaker for this) 4. Lay down a layer of celery in the bottom of the Slow Cooker. (keeps the ribs an inch away from the heat) 5. Put the Ribs in there. 6. Cook on Slow. I set it for 8 hours, it should take 8 hours but they've been done in 6 the past couple times. I think my slow cooker is running hot. So check them at 4 and 6 hours. They'll be done when the meat is falling off the bone. 7. Enjoy!
- Splendor 11y ago
  What's your favorite sugar-free water enhancer?
benatkin 11y ago
Aren't most ketogenic diets high in red meat? What about cancer? http://blogs.discovermagazine.com/d-brief/2015/01/02/red-meat-cancer-immune/ http://blogs.discovermagazine.com/d-brief/2015/01/02/red-mea...
- stevebmark 11y ago
  I wouldn't say ketogenic / atkins diets are high in red meat. The aim is 60-80% of the diet as FAT, not as protein. I love a good steak but won't go out of my way to have one unless it's after a workout when I want more protein. Either way, I would suggest reading The Big Fat Surprise and/or Why We Get Fat to learn more about the tenuous red meat cancer risk. I would also suggest re-reading the last three paragraphs of the article you linked to, and read studies and books instead of articles!

IndianAstronaut 11y ago

>Ketosis also "mimics fastings", Can you please provide a source on this?

deleted 11y ago
[deleted]
Balgair 11y ago
https://en.wikipedia.org/?title=Ketosis https://en.wikipedia.org/?title=Ketosis "During the usual overnight fast, the body's metabolism naturally switches into ketosis, and will switch back to glycolysis after a carbohydrate-rich meal. Longer-term ketosis may result from fasting or staying on a low-carbohydrate diet, and deliberately induced ketosis serves as a medical intervention for intractable epilepsy.[6] In glycolysis, higher levels of insulin promote storage of body fat and block release of fat from adipose tissues, while in ketosis, fat reserves are readily released and consumed.[5][7] For this reason, ketosis is sometimes referred to as the body's "fat burning" mode"

exelius 11y ago

Can confirm, keto diets burn weight like a motherfucker. They're also reasonably easy to maintain, since it's pretty easy to order a cheeseburger without a bun and eat it with a knife and fork. Also, bacon and avocado are a delicious combination, and keto says they are ok. I dropped 40 lbs in under 6 months on a keto diet, and built muscle while doing it. But I had to stop the keto diet because it makes me stupid when I'm on it. I'm not talking the "keto fog" that you experience for a few days when your body is adjusting; operating in extended ketosis for me correlated with a marked decline in mental capacity. I went from being a rockstar knowledge worker to someone who couldn't do simple arithmetic. And my mental faculties would return within an hour if I ate a bagel. Ketones (what your body burns for energy when there are no sugars available) don't penetrate to the brain, so your body produces sugars from protein through gluconeogenesis, but it wasn't really enough to keep me functioning at 100%. Also, you don't want to be frequently transitioning in/out of ketosis; it gives you horrible headaches.

MCRed 11y ago
Did you try taking a multi-vitamin? I've seen advice to get magnesium and potassium into your system, so I started using lite-salt. In the early days of my diet I was always tired (slept for 24 hours) and started having a constant headache-- this is after getting into ketosis and being there for a couple weeks. But the lite salt cured it within a day. (I wasn't able to get the right form of magnesium yet, but have been also taking multi-vitamins.)
- exelius 11y ago
  Yeah, I did the lite salt thing, I was taking vitamins, etc. I physically felt fine; but I was noticeably dumber. Also, the relief after eating something really carb-heavy was pretty immediate.
kafkaesque 11y ago
I had the same experience. I cut off all noodles/pastas and breads, and ate no pastries/sweets/chocolates. I went from lifting a few times a week for three months to once a week and my brain could not have a rational thought. I felt like my sugar levels were down all the time some how, so even after eating meats, eggs, vegetables, and dressings, my body would feel light and I couldn't get full. I couldn't work on my computer a lot and basically was on autopilot. It was kind of bizarre because I was eating 4-6 eggs a day and my body started feeling really weird. I think all the protein was messing with my body when it was trying to break it down.
hrehhf 11y ago
> Ketones (what your body burns for energy when there are no sugars available) don't penetrate to the brain [0] says that this is false. Ketones do go into the brain and the brain does use them for fuel. [0]http://proteinpower.com/drmike/2007/05/22/metabolism-and-ketosis/ http://proteinpower.com/drmike/2007/05/22/metabolism-and-ket...
- exelius 11y ago
  I believe you -- most of what I know about keto I found on reddit so I treat it with a grain of salt. But I also know how it made me feel, and I can't do the diet and hold down the job I currently have.

MCRed 11y ago

I've combined the two. I've been doing an IF of 8/16 where I only eat within 8 hours. Whenever I have lunch, I then have 8 hours to have dinner. I don't have the same schedule each day so sometimes I might start the next day late and fast for 20 hours. However, since I've been doing this for a couple weeks, I recently stopped eating the second meal. I just wasn't hungry. I don't have the psychological stress- because I'm allowed to eat as much as I want (of the keto diet, so within the 20g of carbs, but I snack on celery) during those 8 hours so if I got hungry I could do it. It's just when the 8 hours are up I decide if I'm hungry or not. As someone who is very overweight, the idea of not being hungry is quite shocking. (I don't think it's due to the IF, I think it's due to the ketogenic diet I'm on.) But if I keep to this, then eating once a day would give me about 23 hours of fasting. But given my uneven schedules many times that's been over 24 hours, though some days it's more like 20 hours. The point being that it isn't really much of an issue- depends on how I'm feeling and about half the time I'm not hungry at the 24 hour mark. Of course I do drink a lot of water, and I use sugar free "water enhancers" to help. So, as a consequence I am drinking quite a bit more water than I ever have in my life. (probably 1-2 gallons.) This is an anecdote, so I don't know if it's ketosis, or what that's the effect. I wanted to do everything right this time around so I'm doing keto, IF, calorie restriction, and portion controls. (I pre-make my meals. So I heat up a fixed sized meal, and have to go get a second meal if I'm still hungry, which I did a few times in the early days.) I'm also learning to cook really great BBQ in the slow cooker. Yesterday all I ate was some ribs. They were wonderful. (Memphis style, no sauce.) Here's the recipe: Rub: Memphis Dust: http://amazingribs.com/recipes/rubs_pastes_marinades_and_brines/meatheads_memphis_dust.html http://amazingribs.com/recipes/rubs_pastes_marinades_and_bri... 1. Cut the membrane off of the back of the ribs (or at least pierce it.) 2. Coat the ribs with salt. (I use lite- salt to increase my potassium intake). 3. Coat the ribs with Memphis Dust- pretty thick (I use a shaker for this) 4. Lay down a layer of celery in the bottom of the Slow Cooker. (keeps the ribs an inch away from the heat) 5. Put the Ribs in there. 6. Cook on Slow. I set it for 8 hours, it should take 8 hours but they've been done in 6 the past couple times. I think my slow cooker is running hot. So check them at 4 and 6 hours. They'll be done when the meat is falling off the bone. 7. Enjoy!

Splendor 11y ago
What's your favorite sugar-free water enhancer?

benatkin 11y ago

Aren't most ketogenic diets high in red meat? What about cancer? http://blogs.discovermagazine.com/d-brief/2015/01/02/red-meat-cancer-immune/ http://blogs.discovermagazine.com/d-brief/2015/01/02/red-mea...

stevebmark 11y ago
I wouldn't say ketogenic / atkins diets are high in red meat. The aim is 60-80% of the diet as FAT, not as protein. I love a good steak but won't go out of my way to have one unless it's after a workout when I want more protein. Either way, I would suggest reading The Big Fat Surprise and/or Why We Get Fat to learn more about the tenuous red meat cancer risk. I would also suggest re-reading the last three paragraphs of the article you linked to, and read studies and books instead of articles!