Vitamin C, Vitamin D and Zinc: Do They Help Prevent or Treat COVID-19?
The appeal of safe, natural treatments is undeniable. It’s true for age-old conditions such as the common cold, and for new diseases, especially if they have no known cure. So it makes sense that there would be a lot of interest in supplements for COVID-19, whether as prevention or treatment. Indeed, zinc, melatonin, vitamin C, vitamin D, and other supplements have been commonly prescribed from the earliest days of the pandemic. But do they work? McCullough et al. 2020 Why supplements might help prevent or treat COVID-19 While science can show whether a drug is effective, we may not always know why. When antibiotics were first discovered in the 1920s, there was limited understanding of the biology involved. But lacking an explanation for their benefit did not discourage doctors from recommending these highly effective treatments. If it’s less clear whether a drug works, biologic plausibility — that is, a logical and well-understood reason why the drug should work — increases the expe