Named: The Non-Obvious Cause of Excess Weight

An international team of scientists has discovered how the interaction between the gut and brain - as well as social factors - affects eating behavior and the risk of developing obesity or digestive disorders. This was reported by the American Gastroenterological Association (AGA).

Researchers found that stress related to lifestyle, income, education level, and access to healthcare can disrupt the balance in the brain-gut-microbiome system. This affects mood, decision-making, and hunger signals, increasing cravings for high-calorie foods. The authors note that understanding these interactions will help doctors develop more personalized approaches to treating obesity and improve patients' quality of life.

It turned out that people with disruptions in the gut-brain connection are much more likely to show symptoms of avoidant-restrictive food intake disorder. More than a third of participants with such disruptions showed signs of selective eating disorder. Symptoms included sensory aversion to food, lack of interest in eating, and fear of unpleasant consequences.

The authors call for implementing regular screening and developing an integrated approach that combines gastroenterology and psychological support.