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"No dairy": would result in a Vitamin D deficit unless the some other food fortified with vitamin D is used, person is living in a tropical region with little c

"No dairy": would result in a Vitamin D deficit unless the some other food fortified with vitamin D is used, person is living in a tropical region with little clothing, or the multivitamin option is chosen over the emphasized B12 supplement. It also lacks fiber: https://spoonuniversity.com/lifestyle/potatoes-and-milk-is-the-martians-diet-sustainable https://spoonuniversity.com/lifestyle/potatoes-and-milk-is-t...

sschueller 4y ago
Isn't most Vitamin D "absorbed" (generated via sun light) via skin and only very little via diet?
- TylerE 4y ago
  In theory. In practice most people, especially at non-Tropical latitudes or who don’t spend multiple hours outside everyday don’t get nearly enough.
  - 2000UltraDeluxe 4y ago
    All day at Arctic latitudes, and that assumes your skin is somewhat lightly pigmented, and that you don't live too far north. If you do, there is no sunlight during winter. If you've got a daytime job, live above the Arctic circle or immigrated, then your only option is to eat vitamin D-rich foods or eat supplements.
- alar44 4y ago
  Yeah which is why so many people have problems with vitamin D, not enough sunlight. That's hard to control, but you can take vitamins daily.
- aksss 4y ago
  Not necessarily. The best way to get it is arguably via the sun, but with caveats. Because of the thickness of the atmosphere when the sun is at lower altitudes you will only start to get enough UV-B penetrating when the sun is at an angle of >=35 degrees. If you are within 35 degrees of equator you can get UV-B every day, but outside of these latitudes there are many months where there's just not enough solar hang time high enough in the sky to deliver any meaningful amount of UV-B. The shitty part is, the whole time and more you're still getting UV-A, which is a known cancer risk. Depending on your clothing, skin pigment, weight, and age, UV-B uptake may be significantly reduced (up to 6x for dark skin pigment, 2x for age over 50). So while you can get UV-B from the sun in mid-day at the right latitudes, most people benefit from supplementing. Good info at the D-Minder app site: https://dminder.ontometrics.com/ https://dminder.ontometrics.com/ I think what I've learned from this is supplement, supplement, supplement.
- OJFord 4y ago
  'Generated'? What's the process for that? I thought it was 'via diet', it's just that sunlight is necessary for the extraction/absorption? Sort of like carbohydrate in a plant is 'generated via sun light' (photosynthesis) - but other inputs, carbon dioxide & water, are necessary too.
ravenstine 4y ago
The human body does not need fiber.
- potiuper 4y ago
  As long as one does not have various gastrointestinal disorders and accepts the adverse cardiovascular, cancer, and diabetes risks. A lack of dietary vitamin D also does not risk immediate death like a lack of oxygen, but similarly increases risk of adverse conditions like rickets.

sschueller 4y ago

Isn't most Vitamin D "absorbed" (generated via sun light) via skin and only very little via diet?

TylerE 4y ago
In theory. In practice most people, especially at non-Tropical latitudes or who don’t spend multiple hours outside everyday don’t get nearly enough.
- 2000UltraDeluxe 4y ago
  All day at Arctic latitudes, and that assumes your skin is somewhat lightly pigmented, and that you don't live too far north. If you do, there is no sunlight during winter. If you've got a daytime job, live above the Arctic circle or immigrated, then your only option is to eat vitamin D-rich foods or eat supplements.
alar44 4y ago
Yeah which is why so many people have problems with vitamin D, not enough sunlight. That's hard to control, but you can take vitamins daily.
aksss 4y ago
Not necessarily. The best way to get it is arguably via the sun, but with caveats. Because of the thickness of the atmosphere when the sun is at lower altitudes you will only start to get enough UV-B penetrating when the sun is at an angle of >=35 degrees. If you are within 35 degrees of equator you can get UV-B every day, but outside of these latitudes there are many months where there's just not enough solar hang time high enough in the sky to deliver any meaningful amount of UV-B. The shitty part is, the whole time and more you're still getting UV-A, which is a known cancer risk. Depending on your clothing, skin pigment, weight, and age, UV-B uptake may be significantly reduced (up to 6x for dark skin pigment, 2x for age over 50). So while you can get UV-B from the sun in mid-day at the right latitudes, most people benefit from supplementing. Good info at the D-Minder app site: https://dminder.ontometrics.com/ https://dminder.ontometrics.com/ I think what I've learned from this is supplement, supplement, supplement.
OJFord 4y ago
'Generated'? What's the process for that? I thought it was 'via diet', it's just that sunlight is necessary for the extraction/absorption? Sort of like carbohydrate in a plant is 'generated via sun light' (photosynthesis) - but other inputs, carbon dioxide & water, are necessary too.

ravenstine 4y ago

The human body does not need fiber.

potiuper 4y ago
As long as one does not have various gastrointestinal disorders and accepts the adverse cardiovascular, cancer, and diabetes risks. A lack of dietary vitamin D also does not risk immediate death like a lack of oxygen, but similarly increases risk of adverse conditions like rickets.