It is worth noting that the intestinal ecosystem varies from person to person, so it is difficult to predict the amount of pickles or other fermented foods needed to achieve a sedative effect. Similarly, it is difficult to predict the degree of “anti-anxiety” effect of eating such food.
While there are few human studies linking fermentation and the brain, scientists have studied the effects on animals. Previous studies have found a link between probiotics and depression or anxiety. In such studies, manipulation of fermented food consumption had a direct impact on both personality and social anxiety.
University scientists have also noted a link between the level of GABA in the brain and a decrease in permeability and inflammation of the intestine.
Researchers have further explained this connection between the intestine/brain:
“Fermented foods, so often included in traditional dietary practices, have the potential to affect brain health because of the microbial action that has been applied to food or drink and the ways in which fermented food or drink directly affects our own microbiota… this can manifest itself in behavioral patterns…
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