Gut bacteria is having a moment lately, even receiving the Very Important Story treatment recently in the New York Times. The paper of record takes a deep dive into research that increasingly suggests the microorganisms swimming around your pipes not only digest food and fight disease, they secrete mood-regulating chemicals like serotonin, dopamine, and gamma-aminobutyric acid or GABA.
"There is definitely communication between bacteria in the gut and the brain, but we don't know which one starts the conversation," says the OSU study's co-author Dr. Michael Bailey. "Maybe kids who are more outgoing have fewer stress hormones impacting their gut than shy kids. Or maybe the bacteria are helping mitigate the production of stress hormones when the child encounters something new. It could be a combination of both."
Gastrointestinal abnormalities have been linked to "anxiety, depression, and several pediatric disorders, including autism and hyperactivity," the Times reports. Research like that from OSU is focused on how the mood-regulating chemicals get from the gut to the brain, and how that process might be involved in chronic disease. But the implications could be way more pedestrian: Is there a dietary cure for looney toddlers?
Comment: For more information about the connection between diet and hyperactivity in children read the following articles:
- Nutrition plays a role in ADHD: Studies suggest that diet can have powerful effects on behavior
- Hard to Stomach: A western diet promotes unhealthy gut bacteria in children
- Study: Cutting Out Suspect Foods Could Help Calm ADHD Children
According to a new study by Dutch scientists, restricting the range of foods fed to children suffering from ADHD can "significantly improve" their disrupting behavior and can prove a standard treatment for such kids.
"It is possible that effects of diet would emerge if we used a more detailed assessment," says Bailey's co-author, Dr. Lisa Christian. "It is certainly possible that the types or quantities of food that children with different temperaments choose to eat affect their microbiome."
Given the glacial pace of this kind of research, don't expect to calm a meltdown over lost Legos with a squeeze pouch of carefully calibrated gut bacteria anytime soon. In the meantime, root for the next-best thing: fecal transplants!
Comment: Mind-Gut Connection: Why Intestinal Bacteria May Have Important Effects on Your Brain