Homactin AA Plus Powder, Lemon Lime Flavor, 30 Packets, 1.4 oz (40 G). 150 calories per packet. Homactin AA Plus Powder is a methionine-free, amino acid based medical food for the dietary management of HCU for individuals over one year of age. Homactin AA Plus is nutritionally complete, contains DHA, prebiotic fiber, and a nutrient blend designed to support bone health. Dispensed by prescription. 4500 calories per case.