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Gene links autism, bellyaches

Whether dietary changes can improve brain functioning is still unclear

Parents often report that tummy troubles and autism go hand in hand. Some have even suggested that special diets can reduce autism symptoms. But many experts have dismissed the connection as mere coincidence or have attributed the overlapping conditions to different genetic or environmental factors.

Now new research, published in the March Pediatrics, shows that there is a genetic link between autism and gastrointestinal disorders. It’s unclear whether this genetic link means that an environmental therapy such as diet could boost brain function or if just feeling better could be responsible for improved behavior.

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