Orthorexia is an obsessive-compulsive process characterized by extreme care for and selection of what is considered to be pure 'healthy' food. This ritual leads to a very restrictive diet and social isolation as a compensation. Orthorexics obsessively avoid foods which may contain artificial colours, flavours, preservant agents, pesticide residues or genetically modified ingredients, unhealthy fats, foods containing too much salt or too much sugar and other components. The way of preparation, kitchenware and other tools used are also part of the obsessive ritual. People with orthorexia often have a history or features in common with anorexic patients. They are very careful, detailed and tidy persons with an exagerated need for selfcare and protection. Women, adolescents and those who practice sports suchs as bodybuidling or ahthetics are the gruops at higher risk. A short test has been suggested as a screening tool and useful for early diagnosis of the disorder. Treatment of orthorexia require a multidisciplinary team involving physicians, psychoterapists and dietitians. In some cases, antiserotoninergic drugs may be required as part of the treatment.