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NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,214 terms related to cancer and medicine.

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nutritional supplement
(noo-TRIH-shuh-nul SUH-pleh-ment)
A product that is added to the diet. A nutritional supplement is taken by mouth, and usually contains one or more dietary ingredient (such as vitamin, mineral, herb, amino acid, and enzyme). Also called dietary supplement.