Written by Megan Dix, RN, BSN — Updated on August 25, 2020
The gut microbiome
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 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.
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 Trusted Source 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.
1. Lower your stress levels
Chronic high levels of stress are hard on your whole body, including your gut. Some ways to lower stress may include meditation, walking, getting a massage, spending time with friends or family, diffusing essential oils, decreasing caffeine intake, laughing, yoga, or having a pet. Here are 10 ways to reduce feeling stressed.
2. Get enough sleep
Not getting enough or sufficient quality of sleep can have serious impacts on your gut health, which can in turn contribute to more sleep issues. Try to prioritize getting at least 7–8 hours of uninterrupted sleep per night. Your doctor may be able to help if you have trouble sleeping.
3. Eat slowly
Chewing your food thoroughly and eating your meals more slowly can help promote full digestion and absorption of nutrients. This may help you reduce digestive discomfort and maintain a healthy gut.
4. Stay hydrated
Drinking plenty of water has been shown to have a beneficial effect on the mucosal lining of the intestines, as well as on the balance of good bacteria in the gut. Staying hydrated is a simple way to promote a healthy gut.
5. Take a prebiotic or probiotic
Adding a prebiotic or probiotic supplement to your diet may be a great way to improve your gut health. Prebiotics provide “food” meant to promote the growth of beneficial bacteria in the gut, while probiotics are live good bacteria. People with bacterial overgrowth, such as SIBO, should not take probiotics. Not all probiotic supplements are high quality or will actually provide benefit. It’s best to consult your healthcare provider when choosing a probiotic or prebiotic supplement to ensure the best health benefit.
6. Check for food intolerances
If you have symptoms such as cramping, bloating, abdominal pain, diarrhea, rashes, nausea, fatigue, and acid reflux, you may be suffering from a food intolerance. You can try eliminating common trigger foods to see if your symptoms improve. If you are able to identify a food or foods that are contributing to your symptoms, you may see a positive change in your digestive health by changing your eating habits.
7. Change your diet
Reducing the amount of processed, high-sugar, and high-fat foods that you eat can contribute to better gut health. Additionally, eating plenty of plant-based foods and lean protein can positively impact your gut. A diet high in fiber has been shown to contribute tremendously to a healthy gut microbiome.
4 Types of food for gut health
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 - adding a variety of foods, like mushrooms, good dairy, or certain meats.
The human gut is more complex than previously thought and has a huge impact on whole-body health. A healthy gut contributes to a strong immune system, heart health, brain health, improved mood, healthy sleep, and effective digestion, and it may help prevent some cancers and autoimmune diseases. There are a number of lifestyle changes you can make to positively affect your gut health and your overall health as a result.
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