Foods for Phenylketonurics

Foods for phenylketonurics are especially those that have lower amounts of the amino acid phenylalanine, such as fruits and vegetables because patients with this disease are unable to metabolize that amino acid.

Some industrialized products have on their labels information about the presence of phenylalanine in the product and what is its quantity, such as agar gelatin, non-diet soft drink, fruit popsicle, sugar or starch, for example, so it is important that the patient or the patient's parents check on food labels whether or not the food has phenylalanine and how much.

Food table for phenylketonurics

The food table for phenylketonurics has the amount of phenylalanine in some foods.

FoodsMeasureAmount of phenylalanine
Cooked rice1 tablespoon28 mg
Sweet Potato Fries1 tablespoon35 mg
Cooked cassava1 tablespoon9 mg
Lettuce1 tablespoon5 mg
Tomato1 tablespoon13 mg
Cooked broccoli1 tablespoon9 mg
Raw carrot1 tablespoon9 mg
Avocado1 unit206 mg
Kiwi1 unit38 mg
Apple1 unit15 mg
Biscuit Maria / Maisena1 unit23 mg
Milk cream1 tablespoon44 mg
butter1 tablespoon11 mg
Margarine1 tablespoon5 mg

The amount of phenylalanine allowed in a day varies according to the patient's age and weight. The nutritionist makes a menu according to the allowed amount of phenylalanine that includes all meals and how to prepare them to facilitate understanding and adherence to the treatment of patients and parents in the case of children.

Foods to Avoid in Phenylketonuria

Foods that have more phenylalanine are not eliminated from the diet, but are consumed in very small amounts that are determined by the nutritionist who accompanies the patient and are:

  • Meat, fish and egg;
  • Beans, corn, lentils, chickpeas;
  • Peanut;
  • Wheat and oat flour;
  • Dietary products based on aspartame.

It is also necessary to avoid foods prepared with these ingredients, such as cakes, cookies and others.

Useful links:

  • Phenylketonuria
  • Phenylketonuria Diet