The gut is host to colonies of microorganisms that live in the intestines, called the microbiome. Many of these microbes support healthy bodily functions, improve mental and physical health, and reduce the risk of diabetes, Inflammatory Bowel Disease (IBD), and psoriatic arthritis. Upsetting this microbiome can result in stomach issues, sleep disturbances, fatigue, skin irritation, compromised immune function, and other problems. Fortunately, eating certain foods rich in probiotics and prebiotics can considerably improve gut health. Probiotics Probiotics are good, live bacteria that thrive in the intestines. These are abundantly found in several fermented foods that can be prepared at home or easily available at the grocery store. Greek yogurt Plain Greek yogurt is an excellent source of protein and probiotics, which help improve gut health over time. It is prepared by fermenting milk and straining the whey, i.e., the liquid part, giving it a thick, creamy consistency. Have it as it is, add it to a smoothie, or serve it with some berries for a delicious and healthy snack. Kefir Those who like dairy-based drinks can try kefir. According to some sources, this probiotic beverage has more probiotics and protein than regular yogurt and can help improve gut health by reducing inflammation.