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A comment on Vitamin D insufficiency may account for almost 90% of Covid-19 deaths. Parent comment
For instance, in a study on skateboarders in Hawaii who spent around 4 hours in the sun each day, 50% of participants were found deficient.
https://pubmed.ncbi.nlm.nih.gov/17426097/
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For instance, in a study on skateboarders in Hawaii who spent around 4 hours in the sun each day, 50% of participants were found deficient.
https://pubmed.ncbi.nlm.nih.gov/17426097/