Casein is a protein found in dairy products such as milk, butter and yogurt.
Some people believe that casein is an important factor in the causes and/or management of autism. They advocate a casein-free diet, which they believe can lead to improvements in areas such as IQ, communication and social skills.
This glossary is designed to explain some of the jargon and gobbledygook used by some people when they talk about autism or research..
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The fact that an intervention is listed in this glossary does not necessarily mean that we agree with its use. Nor does it necessarily mean that there is any scientifically valid or reliable evidence behind it.