Nutrition: 1: The process of taking in food and using it for growth, metabolism, and repair. Nutritional stages are ingestion, digestion, absorption, transport, assimilation, and excretion. 2: A nourishing substance, such as nutritional solutions delivered to hospitalized patients via an IV or IG tube.
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According to the USDA, there is no difference between a “portion” and a “serving.” See AnswerHealth Solutions From Our Sponsors
Last Editorial Review: 12/12/2018