Gastro-Intestinal Problems and Autism

Causes

There are various theories about what causes GI problems in people on the autism spectrum, some of them highly controversial and disputed.

Many of the GI problems found in people on the autism spectrum are likely to have the same causes as they do in other people who have GI problems.

However, some people believe that people on the autism spectrum are especially susceptible to GI problems because

• they have leaky gut syndrome, a disorder in which the intestinal lining is inflamed and more porous than normal
• their diet lacks sufficient fibre and/or nutrients, such as essential fatty acids, minerals or vitamins.
• they are more likely to be allergic to or unable to digest certain substances, such as gluten or casein
• they are more prone to viral infections, such as viral gastroenteritis
• they are more prone to bacterial infections, such as clostridium
• they are more prone to fungal infections, such as candida
• they are more prone to gastro-intestinal parasites, such as giardia
• they are more prone to adverse reactions to some medications, including some anti-inflammatory drugs and some anti-biotics
• they are more likely to swallow non-food items, such as soil
• they are more likely to be stressed, which impairs their GI function

The most controversial theories are based around the idea that the GI problems may be caused by/related to substances found in vaccines, such as mercury or the measles virus. The latter theories are not accepted as scientifically valid by the majority of scientists.

Updated

29 Feb 2016