Early Warning Signs of an Eating Disorder in Teenagers

Why early signs matter

Eating disorders, including anorexia nervosa, bulimia nervosa, binge-eating disorder, and ARFID, are serious but treatable illnesses, and catching them early meaningfully improves the chance of full recovery 1Ref 1National Institute of Mental Health (NIMH) (2024).Eating Disorders.Eating disorders are serious, treatable illnesses for which early detection and treatment improve the chance of full recovery, and they raise risk for co-occurring depression and anxiety.. They also commonly travel with depression, anxiety, and other concerns, which is part of why a thorough look matters 1Ref 1National Institute of Mental Health (NIMH) (2024).Eating Disorders.Eating disorders are serious, treatable illnesses for which early detection and treatment improve the chance of full recovery, and they raise risk for co-occurring depression and anxiety.. Disordered eating is more common in adolescents than many parents realize: a large meta-analysis of more than 63,000 youth found roughly 22% screened positive for disordered eating, with higher rates among girls and rising rates with age 2Ref 2López-Gil JF, García-Hermoso A, Smith L, Firth J, Trott M, Mesas AE, Jiménez-López E, Gutiérrez-Espinoza H, Tárraga-López PJ, Victoria-Montesinos D (2023).Global Proportion of Disordered Eating in Children and Adolescents: A Systematic Review and Meta-analysis.Roughly 22% of youth screen positive for disordered eating, with higher rates in girls and rising rates with age.. The earliest changes are often behavioral and emotional rather than a number on a scale.

Behavioral warning signs

Pediatric and federal health guidance describe a recognizable pattern of behaviors that can appear before any obvious weight change 3Ref 3Hornberger LL, Lane MA; Committee on Adolescence (American Academy of Pediatrics) (2021).Identification and Management of Eating Disorders in Children and Adolescents.AAP clinical report on recognizing early warning signs, screening, medical evaluation, and management of eating disorders in adolescents, including school coordination.4Ref 4National Institute of Mental Health (NIMH) (2024).Eating Disorders: What You Need to Know.Lists the physical, emotional, and behavioral warning signs of eating disorders and urges anyone with such signs to talk to a health care provider.:

• New, rigid food rules, cutting out whole food groups, counting calories, or eating only "safe" foods
• Skipping meals, eating very little at family meals, or saying they already ate
• Rituals around food, cutting food into tiny pieces, eating very slowly, or rearranging food on the plate
• Frequent trips to the bathroom during or right after eating
• Evidence of binge eating, such as large amounts of food disappearing
• A sudden interest in cooking for others but not eating themselves
• New, intense exercise that feels driven rather than enjoyable

Physical and emotional signs

Physical changes can show up as the body is affected: noticeable weight change in either direction, feeling cold often, dizziness or fainting, fatigue, hair thinning, or, in girls, missed or irregular periods 4Ref 4National Institute of Mental Health (NIMH) (2024).Eating Disorders: What You Need to Know.Lists the physical, emotional, and behavioral warning signs of eating disorders and urges anyone with such signs to talk to a health care provider.. Emotional signs include intense preoccupation with weight, shape, or "feeling fat," harsh self-criticism about the body, anxiety around meals, irritability, perfectionism, and pulling away from friends and family activities that involve food 3Ref 3Hornberger LL, Lane MA; Committee on Adolescence (American Academy of Pediatrics) (2021).Identification and Management of Eating Disorders in Children and Adolescents.AAP clinical report on recognizing early warning signs, screening, medical evaluation, and management of eating disorders in adolescents, including school coordination.4Ref 4National Institute of Mental Health (NIMH) (2024).Eating Disorders: What You Need to Know.Lists the physical, emotional, and behavioral warning signs of eating disorders and urges anyone with such signs to talk to a health care provider.. Because depression and anxiety frequently occur alongside eating disorders, a flat or low mood can be part of the picture 1Ref 1National Institute of Mental Health (NIMH) (2024).Eating Disorders.Eating disorders are serious, treatable illnesses for which early detection and treatment improve the chance of full recovery, and they raise risk for co-occurring depression and anxiety..

How to start the conversation

If you notice a cluster of these signs, choose a calm, private moment and lead with care, not accusation. Reflect what you have observed ("I've noticed you've been skipping dinner and seem stressed at meals") and express that you want to understand and help. Avoid commenting on weight, appearance, or specific foods, and avoid framing it as a willpower problem. Eating disorders are illnesses, not choices. If your teen is reluctant, you can still take the next step by talking with their doctor yourself.

When a clinician helps

A clinician adds value that a parent cannot provide alone. A pediatrician or behavioral-health clinician can use validated screening tools such as the SCOFF to gauge concern, and rule out or check for medical effects of restricting or purging on the heart, electrolytes, and growth 3Ref 3Hornberger LL, Lane MA; Committee on Adolescence (American Academy of Pediatrics) (2021).Identification and Management of Eating Disorders in Children and Adolescents.AAP clinical report on recognizing early warning signs, screening, medical evaluation, and management of eating disorders in adolescents, including school coordination.. They can distinguish an eating disorder from other medical causes of weight or appetite change, and connect your family with evidence-based treatment. For adolescent anorexia, family-based treatment (FBT), which actively involves parents in restoring nutrition, leads to higher rates of full remission than individual therapy alone and is considered a first-line approach 5Ref 5Lock J, Le Grange D, Agras WS, Moye A, Bryson SW, Jo B (2010).Randomized clinical trial comparing family-based treatment with adolescent-focused individual therapy for adolescents with anorexia nervosa.Family-based treatment produces higher rates of full remission than individual therapy for adolescent anorexia nervosa, supporting FBT as first-line.. A clinician can also coordinate with the school around meals, accommodations, and a return-to-activity plan 3Ref 3Hornberger LL, Lane MA; Committee on Adolescence (American Academy of Pediatrics) (2021).Identification and Management of Eating Disorders in Children and Adolescents.AAP clinical report on recognizing early warning signs, screening, medical evaluation, and management of eating disorders in adolescents, including school coordination.. Early professional evaluation is consistently linked with better outcomes 1Ref 1National Institute of Mental Health (NIMH) (2024).Eating Disorders.Eating disorders are serious, treatable illnesses for which early detection and treatment improve the chance of full recovery, and they raise risk for co-occurring depression and anxiety..