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