What are your thoughts on this? "Does supplemental Vitamin D help prevent Covid-19?" https://www.youtube.com/watch?v=Pq8_mFotS64 https://www.youtube.com/watch

What are your thoughts on this? "Does supplemental Vitamin D help prevent Covid-19?" https://www.youtube.com/watch?v=Pq8_mFotS64 https://www.youtube.com/watch?v=Pq8_mFotS64