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- Anonymous1 decade agoFavorite AnswerNutrients are sources of nourishment, especially nourishing ingredients in a food which can be metabolized by an animal to give energy and build tissue. 
- 1 decade agoumm. . . i think they are chemicals or substances that help fortify, revitalize and flourish up the body's immune system, and others . . . Source(s): myself?
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