If you buy something through a link on this page, we may earn a small commission. How this works. The gut microbiome The incredible complexity of the gut and its importance to our overall health is a topic of increasing research in the medical community. Numerous studies in the past two decades have demonstrated links between gut health and the immune system, mood, mental health, autoimmune diseases, endocrine disorders, skin conditions, and cancer. At one time, our digestive system was considered a relatively “simple” body system, comprised essentially of one long tube for our food to pass through, be absorbed, and then excreted. The term “gut microbiome” refers specifically to the microorganisms living in your intestines. A person has about 300 to 500 different species of bacteria in their digestive tract. While some microorganisms are harmful to our health, many are incredibly beneficial and even necessary to a healthy body. According to Dr. E. M. Quigley in his study on gut bacteria in the Journal of Gastroenterology and Hepatology, having a wide variety of these good bacteria in your gut can enhance your immune system function, improve symptoms of depression, help combat obesity, and provide numerous other benefits.

4 Types of food for gut health Share on Pinterest Diet and gut health are very closely linked. Avoiding processed foods, high-fat foods, and foods high in refined sugars is extremely important to maintaining a healthy microbiome, as these foods destroy good bacteria and promote growth of damaging bacteria. There are also a number of foods you can eat that actively promote the growth of beneficial bacteria, contributing to your overall health. These foods include: 1. High-fiber foods High-fiber foods such as legumes, beans, peas, oats, bananas, berries, asparagus, and leeks have shown a positive impact on gut health in numerous studies . 2. Garlic and onion Garlic and onion may have some anti-cancer and immune system-enhancing properties based on various studies, which are closely tied to some of the primary functions of the gut. Some of these benefits are anecdotal, although some research has been done. 3. Fermented foods Fermented foods such as kimchi, sauerkraut, yogurt, tempeh, miso, and kefir are great dietary sources of probiotics. While the quality of these foods may vary, their benefits on the gut microbiome are well studied . 4. Collagen-boosting foods Collagen-rich foods such as bone broth and salmon may be beneficial to overall health and gut health specifically. Many of these benefits are anecdotal conclusions and further research could be done. You could also try to boost your body’s own collagen production through foods. Try adding a variety of foods, like mushrooms, good dairy, or certain meats.