That means that some people may benefit from a little supplementation, simply to bring them up to the daily recommended requirements for certain vitamins and minerals, says Fernstrom.
To help you sort through the morass, the National Institutes of Health Office of Dietary Supplements provides fact sheets of the latest information on a wealth of individual vitamins, minerals and dietary supplements.
Many people want to take some kind of supplement, so which vitamins are OK to take regularly? Which should we avoid?