Vitamin C is the most popular supplement in the world. More people take vitamin C supplements than any other supplement. Researchers called people at random and asked them what supplements they were taking. Out of every 100 people they called, 67 were taking vitamin C.What do those 67 people know that the other 33 DON'T?Plenty!#1. The scientific FACTS about vitamin C and colds. (Bet you haven't read about THIS study!)#9. Should you take vitamin C...