Yeah lots of amazing info and evidence for the use of Vitamins.
I use 5000ui of D, 2000 of C, 50 of Zinc, a multivitamin, Quercetin, and sometimes B complex.
Been fine all year.
Many people that suffer and die from Covid-19 are vitamin D deficient. Dr. Mercola, who was forced to remove most of his website did a good study of it here:
Stay at home mom Kelly Richards from New York after resigning from her full time job managed to average from $6000-$8000 a month from freelancing at home... This is how she did it...https://www.social96.com