Robert Lustig: Why are so many Americans vitamin D deficient? #vitamind3 #vitamind #shorts #podcasts
19 Apr 2024 · 1 min

0:59
Dr. Robert Lustig explains that Americans are vitamin D deficient because we spend less time in the sun and drink less milk, the two main sources. Modern indoor lifestyles have cut us off from sunlight, while milk consumption has dropped. Only small amounts of sun exposure are needed to make vitamin D in the skin.










