Fermented foods like yogurt, kefir, sauerkraut, and kombucha
can balance the bacteria in your gut, which produces 'feel-good' brain chemicals like serotonin and gamma-aminobutyric acid (GABA). Foods that go through a fermentation process like sauerkraut, kimchi, kefir, kombucha and yogurt help you maintain a healthy gut and
may also help improve your mood. The fermentation process creates probiotics, which in turn, support healthy bacteria in your gut.