There are over 500 inherited metabolic diseases (IMDs) recognized and affect individuals from their birth. Many patients develop neurological problems, brain damage, and many other health issues, even death. Most of IMDs require a very strict low protein diet and constant monitoring of their health by a doctor and a dietitian with a proper training on Inherited Metabolic Diseases. Each inherited metabolic disease as an individual disease might be rare, however due to their large number as a group they compose the 15-20% of all genetic diseases.