What must a phenylketonuria patient leave out of his or her diet?
a specific amino acid
all carbohydrates
some specific carbohydrates
all amino acids
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A phenylketonuria (PKU) patient must leave out a specific amino acid called phenylalanine from their diet. PKU is a genetic disorder that affects the body's ability to process phenylalanine, resulting in its accumulation in the blood. Therefore, individuals with PKU must strictly limit their intake of phenylalanine to prevent harmful levels from building up.
To answer this question, you need to understand the nature of PKU and the specific dietary restrictions it entails. PKU patients are required to follow a low-protein diet, avoiding foods that are high in phenylalanine. This means they must limit or eliminate certain protein-rich foods such as meats, dairy products, eggs, and some grains.
It is important to note that carbohydrates and other amino acids are not entirely eliminated from the PKU diet. Since proteins are composed of amino acids, it is crucial to obtain the necessary amino acids through alternative sources that are low in phenylalanine. Similarly, carbohydrates, which provide essential energy, are not restricted entirely but are carefully selected to limit the intake of phenylalanine.
As always, it is best for individuals with PKU to work closely with a qualified healthcare professional or registered dietitian who can provide personalized guidance on their specific dietary needs.
For Jess,
Read here, especially under diet.
https://en.wikipedia.org/wiki/Phenylketonuria