[arcticbull]

Totally, and those people may need multivitamins, but that's my point.

Further, "if you take the prescribed one pill a day, how are you going to form overdose?" -- vitamin and mineral supplements are not regulated by the FDA, and vary widely by brand and batch and so on.

FDA recommends 700IU for an average adult. The first bottle of multivitamin I found, "Sundown Multivitamin Gummies" has 800IU, which is additive with your diet. 4000IU is the upper limit (and 60,000IU per day has been shown to cause toxicity) I've seen people chow down on those gummies because they're tasty. Not likely to hit, though.

The first Vitamin D supplement (Forest Leaf D3) I found is a once-weekly 50,000IU hum-dinger that provides on average double the safe upper limit.

Lastly, if folks at the poverty line are taking these sometimes expensive, often unnecessary supplements, could that money be better spent on other things?