Thanks to its fermentation process, kimchi is rich in beneficial gut-boosting lactobacilli bacteria, as well as vitamins A and C. It has potent antioxidant and immune-stimulating properties, along with likely anti-obesity effects. Kimchi also has antimicrobial properties that may be effective against pathogenic bacteria, and the lactic acid bacteria formed during the fermentation of kimchi may also help your body break down any pesticides you inadvertently.