NutritionNutrition is the science that studies the process by which living organisms acquire all the things that are necessary for them to live and grow. Nutrition focuses on the role of nutrients, which are defined as substances that the body cannot make on its own and include things like vitamins, minerals, and certain macromolecules. Basically, nutrition consists of diet (what you take in) and metabolism (what happens to it after it enters your body).

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