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The processes by which living organisms obtain food and use it for growth, metabolism, and repair. Its stages include ingestion, digestion, absorption, transport, assimilation, and excretion. The science that deals with food and nourishment, including dietary guidelines, food composition, and the roles that various nutrients have in maintaining health.

Source of Definition

DoD Instruction 6130.05: DoD Nutrition Committee

Last Updated: December 05, 2018

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