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protein what it is: a building block for your child's bones, muscles, skin, and blood, protein plays a vital role in physical growth and in many bodily functions. muscles use amino acids to grow. protein has amino acids and the body only makes of these, so diets need to contain protein to get the other...
protein what it is: a building block for your child's bones, muscles, skin, and blood, protein plays a vital role in physical growth and in many bodily functions. muscles use amino acids to grow. protein has amino acids and the body only makes of these, so diets need to contain protein to get the other...