Everyone has seen the ads or the products on the shelves.A dietary supplement that promises to make consumers skinny, without dieting or exercise. Or the one that will bulk them up and turn them into the envy of other weightlifters at the gym. Not to mention the one to make them perform better in the bedroom.Their labels say they are safe and all-natural. But are they?Many of these products contain unapproved and unregulated pharmaceutically active ingredients, according to a study […]

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