Proteins are the building blocks of the body.
Made up of amino acids, they are used to create, maintain, and repair all the protein components of the body, like skin, hair, bones, organs, muscles plus enzymes, hormones and even genes.
Protein also supplies energy – but not as readily as carbohydrates.
The best sources of protein are animal foods, especially meat, fish, eggs and cheese. Beans, lentils and nuts are other good sources.
Like carbohydrate, protein contains 4 calories per gram.
Plant protein from beans and lentils is generally healthier because it is lower in fat.
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