Q. I have read that high-dose vitamin D did not make a difference when people were admitted to the hospital with COVID-19. Perhaps you should …
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Q. I am healthy, on no medications, work out at least three times per week and have always been very careful about washing my hands, etc. I se…
Q. I recently read that it is important to maintain adequate levels of vitamin D to help prevent severe infection from the coronavirus. This m…
Q. At a Zoom party last night, the topic of vitamin D came up. I take 5,000 IU a day, which keeps my vitamin D levels just where my internist …
Q. You’ve written about sunscreen, but I haven’t seen you address the topic that worries me most. By using sunscreen every day, you may limit …