[Orthorexia Nervosa between growing attention to food quality and eating disorders: diagnostic criteria and evaluation tools].

The literature on Orthorexia Nervosa (ON) rapidly grew in recent years, highlighting the perverse and paradoxical aspects of healthy eating. In this review, authors examine the different meanings of ON, the proposals of diagnostic criteria and evaluation tools, and the most promising research tracks that, if developed, will allow to fully understand the nature of ON, and therefore identify strategy for secondary and primary prevention.