Othorexia Nevrosa is defined as an obsessive though regarding healthy food consumption, food properties and cooking tools. Orthorexia Nevrosa is not mentioned in the psychiatric nosography and is not considered as a disorder. While no formal diagnostic criteria currently exist, screening tools have been developed to explore characteristics of Orthorexia Nevrosa. While Orthorexia Nevrosa has specific characteristics, an overlapping exists with Eating Disorders (ED) and Obsessive Compulsive Disorder (OCD) symptoms.