Fermented foods, like yogurt, kefir, sauerkraut, kimchi, kombucha, etc, help a lot with digesiton, plus many other things. Eating fermented foods boosts the number of beneficial bacteria, or probiotics, in your gut. Probiotics are associated with a variety of health benefits, including improved digestion, better immunity, cognitive benefits (better neurotransimmiter balance) and even increased weight loss and improved body composition.