4 ms·
Even within a population, vitamin D deficiency will vary by lifestyle, skin tone, and climate. All three of which vary a lot in the US.
by kevinmchugh 6y ago
Even within a population, vitamin D deficiency will vary by lifestyle, skin tone, and climate. All three of which vary a lot in the US.
- deelowe 6y agoMy understanding is that even the definition of what constitutes deficient isn't settled due to how it's measured. For example, many African Americans show deficient even though it's believed they aren't.