||Medical food is specially formulated food which is use for dietary management of the disease that has distinctive nutritional needs which cannot be met by normal diet alone. Medical food has low cost as pre-market approval is not needed. Medical food registration requires registering the manufacturing facility and this manufacturing facility should follow GMP (Good manufacturing Practice) and contain substances which are GRAS (Generally recognized as a safe). Medical foods are growing industry in pharmaceutical field as the concept of medical food is just 50 years old. People are not aware about therapy by medical food which is economically suitable and less hazardous. This article shows regulation of medical food in US, Australia and India. Medical food have different name in different country as in US, Australia and India it is known as Medical food, Food for special dietary purpose and Functional food respectively. US have most popular use of medical food among three countries so awareness in other two countries is required.