foods that have phenylalanine
This includes cod, crab, lobsters, mussels, oysters, tuna, salmon and sardines. Meat, being a high-protein food, is also high in phenylalanine, in many cases containing more phenylalanine per serving than fish. Bacon, beef, turkey, liver, chicken and gelatin all contain over 1 gram of phenylalanine per 3 ounce serving.
Eggs and dairy. Many milk products are high in phenylalanine. Cheese and milk, in particular, contain over 1,000 mg/serving. Cream and cream cheese, which are higher in fat and lower in protein, contain lesser amounts, but still in excess of 100mg.