Mental health

Binge eating and addiction: Shared neurobiology

Published February 8, 2025 · 7 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Binge eating disorder and substance addiction share dopamine reward circuit dysfunction, impulsivity, and compulsive behavior patterns.

Shared neurobiology

Both involve dysregulated dopamine reward circuits. Compulsive continuation despite negative consequences. Tolerance (needing more for the same effect). Loss of control. Withdrawal-like symptoms (mood changes when behavior stops).

Co-occurrence

People with eating disorders have 5x the rate of substance abuse. Substance use may replace eating disorder behaviors or vice versa. Both often co-occur with trauma, depression, and anxiety.

Treatment

Integrated treatment addressing both simultaneously. DBT for emotional regulation. Nutritional counseling alongside addiction treatment. Avoid restrictive approaches that may trigger either condition.

Authoritative sources

This article references guidelines from: SAMHSA · NIDA · ASAM

Frequently asked questions

Is binge eating an addiction?

Binge eating shares neurobiological features with addiction including compulsive behavior, tolerance, and loss of control.

Can eating disorders and addiction co-occur?

Yes, frequently. People with eating disorders have 5x the rate of substance abuse.

How is binge eating disorder treated alongside addiction?

Integrated treatment addressing both, with DBT, nutritional counseling, and avoiding restriction.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.