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What conditions necessitate a low protein diet?

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Individuals with phenylketonuria, or PKU, require a low-protein diet for survival, while those who suffer from a form of arthritis called gout can reduce painful symptoms by avoiding certain high-protein animal products, states WebMD. Individuals with kidney disease require low-protein diets to reduce phosphorous intake, according to Mayo Clinic.

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What conditions necessitate a low protein diet?
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Phenylketonuria is a condition found in individuals who lack the ability to metabolize the amino acid found in protein called phenylalanine, reports WebMD. PKU diets avoid high-protein foods such as dairy products, meats, fish and eggs. Beans, legumes, nuts and some wheat-based products are also prohibited foods for those with PKU.

Because high uric acid levels in the blood cause gout attacks and purines raise uric acid, foods high in purines, such as red meats, organ meats and seafood, are best avoided by individuals with gout, explains WebMD.

Kidneys help to maintain a consistent level of phosphorous in the blood by removing excess amounts, notes Mayo Clinic. When the kidneys are compromised, high phosphorous levels, or hyperphosphatemia, can occur, resulting in a decrease in blood calcium levels. This mineral loss can cause the bones to weaken. Individuals with kidney disease should limit phosphorous to no more than 1,000 milligrams a day. Because many high-protein foods are also high in phosphorous, it is suggested kidney disease patients consume low-protein foods or protein-rich foods low in phosphorous if undergoing dialysis.

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