What Does Protein Do?
Protein is 1 of 3 main building blocks of food, along with carbohydrate and fat. It plays many important roles in your body:
Protein builds. Throughout life, you need protein to build cells, tissues, and muscles. Protein is especially important during times of growth (such as infancy, childhood, and pregnancy) and as part of daily life for older adults.
Protein repairs. Protein helps your body heal cuts and wounds.
Protein protects. Protein helps your immune system build antibodies that protect you from disease.
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