I'm not a homeopath or a nutritionist. But I trust Dr. Dean Edell's position: "if you want to take vitamins, go ahead, in moderation. But you should really depend on a good rounded diet to provide your body with the nutrients it needs".
Now, I know I could find a zillion articles, books, youtube videos that extol the miraculous virtues of whatever vitamin, diet, supplement, regimen the author is trying to sell. For myself though, I tend to give more trust to an editorial from folks who don't have an immediate self-interest in selling me their particular product:
From Slate.com:
The Vita Myth
Do supplements really do any good?
Excerpt:
"Individual vitamins and minerals haven't fared much better under scientific scrutiny, with research debunking some of the reputed benefits of vitamin B6, calcium, niacin, and others. In 2006, the National Institutes of Health convened an independent panel of experts to evaluate the evidence that vitamins could prevent chronic disease. The scientists ultimately issued a report stating that studies "do not provide strong evidence for beneficial health-related effects of supplements taken singly, in pairs, or in combinations."
The news on antioxidants, the darlings of the vitamin menagerie, is even more troubling. These compounds, which include vitamins A, C, and E, selenium, beta carotene, and folate, fight free radicals, unstable compounds thought to damage cells and contribute to aging. But not only do antioxidant supplements fail to protect against heart disease, stroke, and cancer; they actually increase the risk of death, according to a 2007 analysis of research on more than 232,000 people, published in the Journal of the American Medical Association, as well as other studies."