I wondered how much of the US is vitamin D deficient, and it’s roughly 45%. For blacks it is over 80%, yet another reason against melanin? https://pubmed.ncbi.nlm.nih.gov/21310306/
I wondered how much of the US is vitamin D deficient, and it’s roughly 45%. For blacks it is over 80%, yet another reason against melanin?
https://pubmed.ncbi.nlm.nih.gov/21310306/
I was looking at this last year, and found a study in china that only 8% of young adults there were vitamin D sufficient.
I was looking at this last year, and found a study in china that only 8% of young adults there were vitamin D sufficient.
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