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Freebase(0.00 / 0 votes)Rate this definition: Nutrient. A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment. They are used to build and repair tissues, regulate body processes and are converted to and used as energy.
4. __________ is a substance in food used by the body to promote normal growth, maintenance, and repair. A nutrient. 5. The term essential nutrient refers to the chemicals that can be interconverted in the liver so that the body can maintain life and good health.