How about "U" -- "Unstudied" If there's no money to study a supplement, it doesn't get studied. Or maybe "unmonied", because the particular studies the governments want cost $$$.
Most doctors today will tell you NOT to take iron, especially if you are a man. Apparently iron has been associated with various health concerns.
I think multi-vitamins are more important as you get older. Your body simply doesn't absorb as much of the vitamins in food as it does when you're younger. So all that advice "Just eat a healthy diet" isn't quite as true.