Brenda Khan
A healthy gut is essential for optimal digestion, absorption of nutrients, and elimination. It also supports a healthy inflammatory response and a strong immune system. Many diseases can be traced back to an imbalance in the gut. To maintain a healthy gut, it is important to focus on adding gut-friendly foods to your diet, such as probiotics and prebiotics, which promote the growth of good bacteria. Probiotics can be found in fermented foods like yogurt, kimchi, and kefir, while prebiotics include fiber-rich foods such as whole grains, beans, fruits, vegetables, and nuts. Additionally, staying hydrated, managing stress, and getting adequate sleep can also contribute to gut health. While there are popular diets that claim to improve gut health, such as intermittent fasting, it is always recommended to consult with a healthcare professional or a registered dietitian before making any significant dietary changes.
| Characteristics | Values |
|---|---|
| Probiotics | Yogurt, cheese, kefir, kimchi, sauerkraut, fermented vegetables, tempeh, Greek yogurt, Korean cabbage |
| Prebiotics | Whole grains, beans, fruits, vegetables, nuts, soybeans, oats, garlic, mushrooms, onions, bananas, asparagus, seaweed, avocado, dandelion greens, pineapple |
| Lifestyle changes | Reducing stress, getting 7-8 hours of uninterrupted sleep, staying hydrated, chewing food thoroughly, eating meals slowly |
| Supplements | Collagen, prebiotic or probiotic supplements |
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Probiotics and prebiotics
Probiotics are live beneficial microbes that strengthen the microbial communities in your gut. They prevent and treat dysbiosis, an imbalance or deficit of beneficial microbes in your microbiome. Probiotics can be taken as dietary supplements or consumed through fermented foods and drinks. Fermented foods that contain probiotics include yogurt, kimchi, kefir, and tempeh. Consuming probiotics through food and drink may help promote a greater diversity of microbes in your biome, which is good for your general health.
Probiotics have many benefits for gut health, but a sudden increase in consumption can cause temporary diarrhea, bloating, and increased gas during digestion. Probiotics are meant to improve gut health, boost overall immunity, reduce inflammation, and help keep your bowels regular. Everyday things like stress and food choices can diminish your gut microbiome, and probiotics are one way to help restore it.
Prebiotics are types of fiber that are not digested in the small intestine. Instead, they travel to the colon, where they are fermented to provide food for beneficial bacteria. Prebiotics include foods with fiber, like soybeans, oats, garlic, mushrooms, and fruits and vegetables. The good bacteria in the gut, or probiotics, need prebiotics to survive.
To improve gut health, it is important to consume both probiotics and prebiotics. Prebiotics provide food for the probiotics, allowing them to thrive. By consuming a variety of probiotic and prebiotic-rich foods, you can promote the growth of beneficial bacteria and support a healthy gut.
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Whole grains
The US Dietary Guidelines for Americans recommend that half of one's daily grain intake should be in the form of whole grains. Examples of whole grains include barley, farro, sorghum, whole oats, quinoa, whole-wheat bread, brown rice, and popcorn.
By incorporating a variety of whole grains into your diet, you can improve your gut health, maintain a healthy weight, and benefit from the added nutrients that whole grains provide.
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Leafy greens
Beet greens are another example of edible leafy greens that are often ignored. They are rich in nutrients and antioxidants such as zeaxanthin and lutein, which may help reduce the risk of eye disorders. They can be added raw to salads and soups or sauteed and eaten as a side dish.
Turnip greens are another type of leafy green with a strong and spicy flavour. They are often cooked rather than eaten raw and can be used as a replacement for kale or spinach in most recipes.
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Avocados
Research has shown that daily avocado consumption can have a positive effect on microbial diversity in the gut, increasing the abundance of beneficial bacteria. One study found that participants who ate avocado every day had a greater abundance of bacteria that break down fibre and produce metabolites that foster gut health. They also had slightly more fat in their feces, indicating that they were absorbing less fat from their diet.
In addition to their gut health benefits, avocados can also help reduce blood lipid concentrations and increase satiety, which may be beneficial for weight management. However, it is important to be mindful of portion sizes as avocados are high in fat and calories.
Overall, incorporating avocados into your diet is a great way to support your gut health and promote a healthy digestive system.
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Hydration and sleep
Hydration
Water is essential for your health. Proper hydration helps prevent infections, keeps joints lubricated, and delivers nutrients to cells. Drinking plenty of water may be linked to increased diversity of bacteria in the gut. A 2022 study found that people who drank more water had less of a type of bacteria that can cause gastrointestinal infections. Staying hydrated benefits your overall health and can help prevent constipation. It may also be a simple way to promote a healthy gut.
It is best to stay hydrated with water, but other drinks can help too. Research published in the journal Nutrients in May 2018 found that a diet rich in fruits and vegetables improves gut bacteria diversity within two weeks. This is because of the fiber in these plant-based foods. If you don’t like water, herbal teas are a flavorful option, as are a few cups of plain, caffeinated tea or coffee per day. Tea and coffee have been found to have positive effects on the gut microbiome.
However, it is best to avoid both regular and diet sodas, most fruit juices, and sports drinks for daily hydration due to their high sugar content.
Sleep
There is a close relationship between the gut and the brain, known as the "gut-brain axis." The brain responds to changes in the gut microbiome, and these fluctuations play a role in programming some of the body's sleep genes. Sleep genes regulate the body's circadian cycles, which tell the body when it's time to feel tired or alert.
Research has found that the makeup of a person's fecal bacteria changes when that person is deprived of sleep. These bacteria changes were also associated with problems staying awake and alert.
Therefore, it is important to prioritize sleep in addition to hydration to repair your gut.
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