Dr.Michael Greger:
The safe dose of vitamin D supplements to get most of the population to the optimal level is 2,000 i.u. a day, but the elderly and overweight may need more.
After all that work plowing through the new science and the same 2,000 iu/day recommendation I made in 2011 remains.
Doctor Michael Greger is an American physician, professional speaker on public #health issues, He is creator site about #nutrition facts and every aspect of healthy eating
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