PKU trio Pediatric Oral Supplement Vanilla Flavor 400 Gram Can Powder Phenylalanine-freeAbout PKU trio Powdered Phenylalanine Free Medical Food, Vanilla Flavor (1 Unit) PKU trio toddler PKU formula supports the transition from phenylketonuria free infant formula A blend of essential and non essential amino acids, carbohydrate, fat (including docosahexaenoic acid [DHA]), vitamins and minerals May be used throughout adulthood if a higher calorie formula is indicated, such as during pregnancy and lactation Two level scoops (33 grams)