Casein-Free Diet

Written by:

•Last Updated: August 28, 2025

A casein-free diet restricts the intake of foods that contain casein protein, including milk, butter, cheese, and other dairy products. Casein-free diets are useful for people with an allergy to the protein and have often been used to treat autism-spectrum disorder.

Last Updated:August 28, 2025

Research FeedRead all studies

The safety and efficacy of gluten-free, casein-free diets in people with autism spectrum disorder

This meta-analysis of 8 trials found that a gluten-free, casein-free diet reduced stereotypical behaviors and improved cognition in children with autism spectrum disorder.