"Massive study casts doubt on health benefits of multivitamins.” “Study says echinacea has no effect on colds.” “Latest study: Antioxidant supplements may kill you."
In recent years, such grim headlines have fostered skepticism among would-be consumers of dietary supplements and generated concern among industry experts who fear that the research long heralded as key to driving broad acceptance of their products could — if mishandled or conducted inappropriately — do more harm than good for the sale and reputation of dietary supplements.
One crucial issue is whether the randomized controlled trial (RCT)...
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