Restore lite powder, orange, 65 calories per packet.For the dietary management of phenylketonuria (pku).Dispensed by prescription.Glytactin restore lite powder - orange is a medical food for pku patients, ages one year and older.Each packet contains 10 grams of glytactin protein and contains 55% fewer calories per gram protein equivalent than glytactin restore powder.When added to water, it makes a great tasting fruit-flavored rehydration drink.