Are Vitamins a Waste of Money?--I was fortunate to find a doctor who believes in targeted vitamin supplementation. He did an extremely thorough and comprehensive blood test panel (not just the typical one most doctors pass out-it was 4 pages long!), then prescribed vitamins/supplements based on that. I was VERY low on vitamin D...others had to do with hormones. I've felt so much better since. It's NOT a placebo effect and the quality of the vitamins do make a difference.