Autism guidelines in the US and NZ recommend that every child on the autism spectrum be assessed. If needed, they should be treated for gastrointestinal problems, such as inflammation, constipation, and diarrhea.
1. Less variety of bacteria
2. Various kinds of bacteria
3. Higher numbers and more types of clostridia bacteria
These clostridia produce a chemical called propionic acid, which gets absorbed into the bloodstream and can reach the brain. When researchers injected this into the brains of mice, the mice started to act autistically. When children with autism and clostridia were treated with antibiotics for the clostridia, their behavior became more neurotypical.
1. Autism spectrum disorders
2. Crohn's disease
3. Parkinson
4. Alzheimer's
The gut flora appears to play a role in these and many other illnesses that were never thought to be associated with the gut.
2. Kang, Dae-Wook, James B. Adams, Ann C. Gregory, Thomas Borody, Lauren Chittick, Alessio Fasano, Alexander Khoruts, et al. 2017. "Microbiota Transfer Therapy Alters Gut Ecosystem and Improves Gastrointestinal and Autism Symptoms: An Open-Label Study." Microbiome 5 (1): 10.
http://microbiomejournal.biomedcentral.com/.../s40168-016-022...
Buie T et al. Evaluation, Diagnosis, and Treatment of Gastrointestinal Disorders in Individuals With ASDs: A Consensus Report. Pediatrics Jan 2010, 125 (Supplement) S1-S18; DOI: 10.1542/peds.2009-1878C
3. New Zealand Autism Spectrum Disorder Guideline http://www.health.govt.nz/publication/new-zealand-autism-spectrum-disorder-guideline