Phenylketonuria (PKU)

Inability to metabolize the amino acid phenylalanine. Aspartame (E951) must be strictly avoided because it converts to phenylalanine in the body; protein intake is tightly controlled.

⚠️ Medical disclaimer:This content is for general information and does not replace individualized medical treatment. PKU requires a lifelong, very strict metabolic diet under medical supervision; the daily phenylalanine amount is individual. Always work with a metabolic physician and dietitian. Because aspartame (E951) converts to phenylalanine during digestion, the Acceptable Daily Intake (ADI) does not apply to people with PKU and this sweetener must be avoided; watch for the 'contains a source of phenylalanine' label warning.

Prefer

Whole foods: vegetables, fruit, legumes

Limit / avoid

Suitable natural foods

Natural, unprocessed foods generally suitable for this condition. Click a card for homeland and nutrition details.

Tomato🥬 Vegetable18 kcal Cucumber🥬 Vegetable15 kcal Eggplant🥬 Vegetable25 kcal Red Bell Pepper🥬 Vegetable31 kcal Onion🥬 Vegetable40 kcal Garlic🥬 Vegetable149 kcal Carrot🥬 Vegetable41 kcal Potato🥬 Vegetable77 kcal Spinach🥬 Vegetable23 kcal Broccoli🥬 Vegetable34 kcal Cauliflower🥬 Vegetable25 kcal White Cabbage🥬 Vegetable25 kcal

All suitable natural foods (115) →

Products to watch in the catalog

These 5 products fall in an avoided category or contain a flagged additive for this condition.

🧬Phenylketonuria (PKU)

✅ Prefer

⛔ Limit / avoid

Suitable natural foods

Products to watch in the catalog

Phenylketonuria (PKU)

Prefer

Limit / avoid