Comment by getpost

It's been too long since I've read it for me to reply with confidence. There seem to be PDFs available online.

https://web.archive.org/pdf/search/vitamin%20c%20and%20the%2...

My own experience with vitamin C is that it is not clearly helpful for various illnesses when I tried it. However, I do take 1 g magnesium ascorbate every day just for fun.