Tyros 2 Medical Food for Tyrosine Metabolism

Tyros 2 is a specialized medical food formulated for the dietary management of tyrosinemia and related disorders of tyrosine metabolism, including types I, II, and III. For individuals who must restrict tyrosine and phenylalanine, this formula supplies the protein equivalent and micronutrients the body needs while omitting the amino acids it cannot safely process. It is intended for use under the supervision of a physician or metabolic dietitian.

The product carried here is the Reckitt Benckiser Tyros 2 Mixed Berry Flavor Medical Food (410 calories per serving, adult formulation, 1 lb. can, ref. 891801). Formulated for older children and adults, Tyros 2 provides an amino acid–based protein source free of phenylalanine and tyrosine, along with vitamins and minerals to help support balanced nutrition on a tightly controlled diet. The mixed berry flavor is designed to improve palatability, which matters when a medical food is part of daily, long-term management rather than a short-term intervention.

Families and patients often ask how Tyros 2 differs from earlier or infant-stage formulas: the adult version delivers a higher protein and calorie density suited to the greater nutritional demands of teens and adults, while remaining free of the restricted amino acids. As with all metabolic formulas, serving amounts should be individualized to blood amino acid levels and prescribed by the care team—never adjusted independently.

If you're managing other inherited metabolic conditions, you may also want to review related amino acid–modified medical foods such as BCAD 2, formulated for branched-chain amino acid disorders like maple syrup urine disease. Keeping an adequate supply on hand helps ensure uninterrupted dietary management between clinic visits.