The LTCOVID.com Niacin Question

A. I am not taking supplemental Niacin.

B. I am not taking supplemental Niacin and have NOT noticed a worsening of my vision since COVID-19.

C. I am not taking supplemental Niacin, and HAVE also noticed a worsening of my vision since COVID-19.

D. I am taking supplemental Niacin and have NOT noticed a worsening of my vision since COVID-19.

E. I am taking supplemental Niacin, and HAVE also noticed a worsening of my vision since COVID-19.

None of the above, or other (please explain):

As answered above, I do not take any Niacin (Vit-B3), not even in a multi-vitamin.

I take Vitamin B-3 (Niacin) but for a reason not related to "long-term" COVID-19.

Other (please specify)

None of the above