Why Vitamin C Is A Waste Of Your Money (by B. Stanfield)
https://www.youtube.com/watch?v=knDB7Rpn_Mk

More than ~100 mg vitamin C per day is a waste. That means, if you eat vegetables and fruit, you have no need to supplement. 

 @84d18d47 so let them buy it, what's wrong the placebo effect unless you have an arterial motive