A nutrient is any element or compound necessary for or contributing to an organism's metabolism, growth, or other functioning. Six nutrient groups exist, classifiable as those that provide energy, and as those that otherwise support metabolic processes in the body: Some of them are essential because they cannot be synthesized in the body and must be obtained from a food source. Substances that provide energy Carbohydrates: compounds made up of sugars used or stored as energy. Carbohydrates have three differe ...

See also:

Nutrient, Nutrient - Nutrients and the body, Nutrient - Nutrients and the environment

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