The prevalence of autism has been soaring in the recent decade. According to the World Health Organization, one in every 160 children falls on the autism spectrum disorder (ASD).

Although autism is mainly genetic, environmental factors are also associated with the contributing cause. One such factor is processed food. In this article, we will unveil research that shows the relationship between processed foods and autism.

What are processed foods?

Processed foods are food products that have undergone some form of alteration to extend their shelf life.

They are produced in bulk and typically contain high amounts of preservatives, additives, and artificial colors and flavors to enhance their taste and appearance. Examples of processed foods include snack foods, canned foods, sugary drinks, and ready-to-eat meals.

Processed foods and autism

A new study published in the journal Nature in 2021 investigated the effects of processed foods on autism and related disorders.

The findings of the research suggested that consumption of processed food by pregnant women and children can significantly increase the risk of autism.

The study showed that processed foods contain high amounts of sugar, salt, and unhealthy fats, which can cause inflammation and oxidative stress in the body.

The inflammation and oxidative stress can then lead to the impairment of brain function, which is a hallmark of autism.

The research report highlighted that prenatal exposure to processed foods could be the most critical factor in the development of ASD.

The study found a strong correlation between the volume of processed food consumed during pregnancy and the increased risk of ASD in children.

Processed foods and gut bacteria

The human gut is home to trillions of bacteria, collectively known as gut microbiota. The gut bacteria play a vital role in regulating our immune system, brain function, and overall health.

Recent research has shown that processed foods can significantly alter the composition of gut bacteria, leading to dysbiosis, a condition in which the balance of gut bacteria is disrupted.

Dysbiosis has been linked to various neurological and psychiatric disorders, including autism. Studies have found that children with autism have significantly different gut microbiota composition than typically developing children.

Researchers suggest that the disruption of the gut microbiota caused by processed foods may be a possible mechanism in the development of autism.

Dysbiosis can lead to the production of harmful metabolites, such as short-chain fatty acids, which can cause inflammation and oxidative stress in the body.

Conclusion

The link between processed foods and autism is becoming more apparent. The research indicates that processed foods can increase the risk of autism by disrupting brain function and altering the composition of gut microbiota.

Prenatal exposure to processed foods can be a critical factor in the development of ASD. Hence, reducing processed food consumption and promoting a healthy diet during pregnancy and childhood could be important in preventing autism.