Study of the Efficacy of GGON: a Cognitive Training App for Orthorexia Nervosa.

The intervention will be done through an app named GGON, which is used to work on the dysfunctional beliefs that are associated with orthorexia nervosa. The app is made up of a series of levels comprising the topics based in cognitive-conductual perspective that are related to Orthorexia Nervosa. At each level, affirmations in the form of beliefs appear on the screen, and the person must accept them if they are functional, adaptive and positive; or reject them if they are dysfunctional, maladaptive and negative.