Phenyl-Free 2 Medical Food for PKU Management

Phenyl-Free 2 is a phenylalanine-free medical food designed for children over one year of age, adolescents, and adults managing phenylketonuria (PKU). Because individuals with PKU cannot safely metabolize phenylalanine, they rely on a specialized protein source that supplies the amino acids the body needs while keeping this one out of the diet. That's exactly what this formula does — delivering complete protein equivalent, vitamins, and minerals without contributing to blood phenylalanine levels.

We carry the Phenyl-Free 2 Oral Supplement in a vanilla-flavored powder, packaged in a convenient 1 lb. canister. The vanilla profile makes it easier to mix into drinks or incorporate into recipes, which matters a great deal when adherence is a lifelong commitment. It's formulated for the higher protein needs that come after infancy, bridging the growing child through the teen years and into adulthood.

A common question from families is how this differs from the infant formulation. Phenyl-Free 1 is intended for infants and includes fat and carbohydrate for early nutrition, while Phenyl-Free 2 is protein-concentrated for older individuals who get calories from their broader low-phenylalanine diet. If your clinical team has recommended an even higher protein density, the Phenyl-Free 2HP formulation offers that option.

Dosing and daily amounts should always follow the guidance of your metabolic dietitian or physician, since protein requirements shift with age, growth, and lab results. Consistency and proper mixing help maintain stable phenylalanine control between clinic visits.

Order the vanilla 1 lb. canister here, or explore the full range of metabolic nutrition and other supplies at Honest Medical.