Of course, there have been large studies conducted on vitamins' effectiveness, but results can be hazy at best, contradictory at worst, and rarely, if ever, demonstrate a causal link between a positive outcome and a vitamin supplement.
The science of vitamins', well, inconclusiveness has been well established enough in the medical community that some researchers will pen articles with aggressive titles like, "Enough Is Enough: Stop Wasting Money on Vitamin and Mineral Supplements."
Health claims are enticing, and placebos are powerful
Pop quiz, hot shot: which is more comforting to believe? Taking an over-the-counter supplement will make you healthier, happier, and live longer? Or that decline, disease, and death will inevitably strike us all?