Fermented foods are very trendy. It must be said that, according to nutritionists, regularly consuming kefir, kombucha, kimchi or even fermented vegetables is an excellent way to take care of your microbiota, that is to say “good bacteria” that populate our intestines.
But did you know? According to a recent study conducted by researchers at University College Cork (Ireland), fermented foods are also beneficial for our mental health.
Irish scientists have reviewed the health properties of 200 fermented foods. “Fermentation transforms the raw sugar in foods into a plethora of metabolites that have positive effects on the digestive system and the nervous system” they explain.
Fermented Foods May Impact Brain Function
Fermented foods contain tryptophan, an amino acid involved in the production of serotonin, a neurotransmitter particularly involved in mood regulation. “Some fermented foods directly contain neurotransmitters in raw form: these can have a short-term as well as long-term impact on brain function“add the researchers.
But beware ! If fermented foods can be good for health, they also have contraindications since fermentation leads to acidification of the food. Thus, people on antibiotic or anti-acne treatment, as well as people with SIBO (Small Intestinal Bacterial Overgrowth) or digestive candidiasis should rather avoid them. And for others, consumption must remain moderate: 3 servings per week, maximum.
Source : Microbiology Society
