Principles of human nutrition

We rely on the foods we eat to provide all the building blocks for tissue growth and reproduction, the energy required for all metabolism, functions and activities, and the compounds that are ‘essential’ for normal metabolism but cannot be synthesized by humans. Nutritional science covers all the processes involved in achieving a healthy balance between requirements and the supply of nutrients, at the right time and in appropriate proportions, at cellular, organ, whole-body and group/population levels.

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