GI abnormalities in the gut of autistic children compared with healthy or sibling controls have been widely studied. have indicated that 70 % of children with ASD report having a history of GI complaints, against 28 % of neurotypical controls, and that relationship between an improved gut health and a reduction of symptoms in some patients was evaluated. 

A recent study revealed that frequency of lactase deficiency was 58% in autistic children ≤ 5 years and 65% in autistic older patients. Lactose intolerance can lead to:

• Abdominal bloating, pain or cramps
• Rumbling sounds in the stomach
• Diarrhea, flatulence or gas
• Nausea

Eliminating lactose from autistic child diet could have positive impact not only on gastro intestinal symptoms but might improve autism traits.

What foods contain Lactose

Lactose can be found mainly in milk and milk products like yogurt,  cheese, cream, and butter. But it’s also in some breads and baked goods, pancake mixes, cookies  and candy. 

Various researches have been done since then by many institution in addition to World Health Organization researches which all lead that there is no relation between MMR vaccine and Autism, these researches and the revision of the of the published research in 1998 confirmed the false claims and the research have been withdrawn by the publisher and the researcher have been discredited.
On the other hand, others claim that MMR might not increase autism but affect those at higher risk. Researchers from Denmark carried a research on over half million children with a 10 year follow-up dismissed this claim even with high risk children. also, a 2019 US study concluded that MMR doesn’t increase risk of Autism or trigger it in susceptible children.

How this impact vaccination!

However, the consequences were dropping in vaccination and many parents hesitated or delayed their child vaccination leading to Measles outbreak which is uncommon. Hopefully with the high-quality evidence the fear of vaccination and its relationship to autism will disappear.