KnowraOrthorexia nervosaLinked fromLinked fromThe 3 pages that link to Orthorexia nervosa, each with the reason it gives.All 3Compared with 3Eating disorderCompared with: Health-focused eating can be impairing without meeting formal eating-disorder diagnostic criteria.Anorexia nervosaCompared with: Food rules may overlap, but orthorexia centers on perceived food purity rather than anorexia's diagnostic features.Muscle dysmorphiaCompared with: Both can involve rigid routines, but muscle dysmorphia centers on perceived muscularity.