Phenylalanine
What is Phenylalanine?
Phenylalanine is an essential amino acid, meaning the body cannot produce it and it must be obtained from the diet. It is found naturally in protein-rich foods such as meat, fish, eggs, dairy products, and legumes. It can also be produced industrially through fermentation processes.
Is Phenylalanine a major allergen?
Phenylalanine itself is not one of the 14 major allergens that UK law requires to be emphasised on food labels.
What is Phenylalanine used for?
Phenylalanine is not typically added to foods as a functional ingredient like a preservative or emulsifier.
Is Phenylalanine safe?
Phenylalanine is an essential nutrient and is not considered a food additive in its pure form.
Why it's used
Phenylalanine is not typically added to foods as a functional ingredient like a preservative or emulsifier. However, it is a component of certain artificial sweeteners, such as aspartame, where it contributes to the sweet taste. It is also found in nutritional supplements, particularly those aimed at athletes or for specific dietary needs.
Health notes
Phenylalanine is an essential nutrient and is not considered a food additive in its pure form. The body metabolises phenylalanine to produce other compounds, including tyrosine. Individuals with the genetic disorder phenylketonuria (PKU) must restrict their intake of phenylalanine due to an inability to metabolise it properly. Aspartame, which contains phenylalanine, has been evaluated by EFSA and other international bodies.
Allergen info
Phenylalanine itself is not one of the 14 major allergens that UK law requires to be emphasised on food labels. Not a major allergen.
Foods that contain Phenylalanine
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