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Diet research and studies help nutritionists and doctors determine the health benefits of foods and supplements. This helps us lead healthier lives every day. Clinical trials help by providing access to experimental tests and treatments. Follow the links below to find WebMD's comprehensive coverage about how diet research and studies are conducted and how to participate in clinical trials.

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Thumbnail: Vitamins: Separating Fact From Fiction

We all know that vitamins and minerals are essential to good health -- it says so right there on the cereal box.

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