Foods for invalids and infants for medical purposes, namely, medicinal food supplements for nutritional purposes; nutritional supplements for medical use; dietary food preparations, namely, dietary and nutritionally fortified food products adapted for medical use; dietary food supplements for medical use; dietary foods adapted for medical use, dietary substances, namely, dietary drinks, dietary drink mixes, and dietary drink gels for use as a meal replacement for infants and invalids; dietetic beverages adapted for medical purposes; medicated supplements for fortifying foodstuffs adapted for medical purposes for persons with special dietary requirements; health food supplements for persons with special dietary requirements; invalids' foods, namely, dietetic foods adapted for medical purposes for persons with special dietary requirements due to a medical condition; medicated foodstuffs, namely, medicated supplements for foodstuffs for persons with special dietary needs due to a medical condition; mineral dietary supplements for humans; protein foods for dietetic purposes, namely, protein reduced food for medical purposes for persons with a disorder of the digestive system; protein substitutes, namely, amino acid based nutritional supplements in powder, liquid and gel form for medical use for the management of metabolic disorders including homocystinuria; fortifying compositions, namely, dietary and nutritionally fortified food products adapted for medical use for the management of malnutrition; all of the aforesaid goods for use by patients with metabolic disorders including homocystinuria