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Protein is one of the building blocks of your body. Your body needs protein to grow, heal and stay healthy. Having too little protein can cause your skin, hair and nails to be weak. But having too much protein can also be a problem. To stay healthy and help you feel your best, you may need to adjust how much protein you eat. What is a low protein diet? A low-protein diet is a diet in which people decrease their intake of protein. A low-protein diet is used as a therapy for inherited metabolic disorders. Low protein consumption appears to reduce the risk of bone breakage, presumably through changes in calcium homeostasis. Since the body cannot store excess amino acids, they must be modified by removal of the amine group. As this occurs in the liver and kidneys, some individuals with damaged livers or kidneys may be advised to eat less protein. Due to the sulphur content of the amino acids methionine and cysteine, excess of these amino acids leads to the production of acid through sulphate ions. These sulphate ions may be neutralized by calcium ions from bone, which may lead to net urinary loss of calcium. This might lead to reduction in bone mineral density over time. Individuals suffering from phenylketonuria lack the enzyme to convert phenylalanine to tyrosine so low levels of this amino acid need to be provided in the diet. The amount of protein you should have depends on your body size, activity level and health concerns. Some doctors recommend that people with kidney disease limit protein or change their source of protein.This is because a diet very high in protein can make the kidneys work harder and may cause more damage. Ask your doctor or dietitian how much protein you should have and what the best sources of protein are for you.

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