Vitamins are worthless

The NY Times reports:

In the past few years, several high-quality studies have failed to show that extra vitamins, at least in pill form, help prevent chronic disease or prolong life.

That's right, there is no scientific evidence that vitamin pills have any benefit to typical Americans.

The only exceptions I know are people with rare medical problems, and people who don't get much sunlight. There is some evidence that people who lack sunlight would benefit from more vitamin D. I don't know how much sunlight or vitamin D is needed. But otherwise, vitamin supplements appear to be worthless.