We, that’s the collective we, buy an astonishing quantity of Vitamin supplements each year. To give you an idea, here are some numbers (Sorry I only quote UK stats here, but you can probably extrapolate from that for other locations):
In the UK we spend about £364 million each year on Vitamin and mineral supplements
Approx 43% pop these supposed wonder drugs, but as you might expect, its the 55+ folks who are the biggest consumers