Vocational catering schools are now increasingly trying to offer various specializing addresses. In particular, the growing request for catering linked to wellness and healthy diet guidelines, requires specific training in this sector. Metabolic diseases, intolerance and allergies are currently relevant public health issues, due to the high incidence on the population. The Position Statement on Allergies, food intolerance and nutritional therapy of obesity and metabolic diseases of 2016, declares that the treatment of these pathologies is effective if it’s aimed at changing the lifestyle and, in particular, through the adoption of a healthy dietary regime not drastically restricted, but rather using food models having a cultural and traditional background, such as the Mediterranean one, and which do not differ much from what patients' preferences are.