avoidant/restrictive food intake disorder "ARFID" - a type of eating disorder

orthorexia nervosa - a type of eating disorder, shares features with obsessive-compulsive spectrum

• "Orthorexia nervosa describes a pathological obsession with proper nutrition that is characterized by a restrictive diet, ritualized patterns of eating, and rigid avoidance of foods believed to be unhealthy or impure." x
• DIAGNOSTIC CRITERIA
• further readings:
  • the clinical basis of orthorexia nervosa: emerging perspectives
  • national eating disorders association
  • wikipedia