Based on the science, there is reason to be hopeful that supplements such as vitamin C or D, zinc, or melatonin might help in the fight against COVID-19. While there’s no proof yet that they do, additional research could show a benefit in certain situations, or with a different dose or formulation of the supplement. So it’s worth keeping an open mind.
In the meantime, we should not dismiss the findings of negative studies just because the results weren’t what we’d hoped. When it comes to preventing
COVID-19, I’d rely more on the recommendations from the CDC than on unproven supplements.
Check with your doctor before starting a supplement. Ask about dosage, other medications you’re taking, and other health conditions you have. The last thing you want to do is to take a supplement that causes more harm than good.