Scientists found a probiotic from dairy fermentation may reduce autism-like symptoms.
Researchers tested the probiotic Lactobacillus murinus in mice with autism-like traits. The mice had reduced social interest and brain chemical imbalances. Scientists gave the mice a daily dose for one month.

Also, the treatment improved learning and memory in the mice. Their brains became more flexible and adaptable. Researchers saw recovery in the intestines and in genes affected by the disorder. Social behavior also returned toward normal.
Meanwhile, the study involved 34 genetically modified mice. Thirteen pairs from the CHD8 gene were removed. The changes caused anxiety, memory problems, and social difficulties. Scientists chose the probiotic due to its anti-inflammatory effects and known brain benefits.
However, autism causes remain unclear. About one in 36 children in the United States has autism, according to the CDC. Current treatments include behavioral and speech therapies. Gut bacteria are known to influence the brain through the gut-brain axis.

Finally, researchers said the probiotic improved brain balance and key receptors. They noted improvements in brain pathways tied to behavior and inflammation.
“Our findings align with and extend previous research, which has shown that Lactobacillus murinu rescues behavioral deficits.”