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Ways to improve digestion

The 11 best ways to improve your digestion naturally

Poor digestion can cause major disruptions to your life. Here are 11 diet and lifestyle changes that can improve your digestion naturally.

Evidence-based
This article is based on scientific evidence, written by experts, and fact-checked by experts.
We look at both sides of the argument and strive to be objective, unbiased, and honest.
Last updated on November 23, 2022, and last reviewed by an expert on November 16, 2022.

Everyone experiences occasional digestive symptoms such as upset stomach, gas, heartburn, nausea, constipation, or diarrhea.

However, when these symptoms occur frequently, they can cause significant disruptions to your life.

Fortunately, diet and lifestyle changes can positively impact your gut health.

Here are 11 evidence-based ways to improve your digestion naturally.

1. Eat real food

The typical Western diet — high in refined carbs, saturated fat, and food additives — has been linked to an increased risk of developing digestive disorders.

Food additives, including glucose, salt, and other chemicals, have been suggested to contribute to increased gut inflammation, leading to leaky gut conditions.

Trans fats are found in many processed foods. They’re well-known for their negative effects on heart health but have also been associated with an increased risk of developing ulcerative colitis, an inflammatory bowel disease.

Moreover, processed foods like low-calorie drinks and ice creams often contain artificial sweeteners, which may cause digestive problems.

One study found that eating 50 grams of the artificial sweetener xylitol led to bloating and diarrhea in 70% of people. In contrast, 75 grams of the sweetener erythritol caused the same symptoms in 60% of people.

Studies also suggest that artificial sweeteners may increase the number of harmful gut bacteria.

Gut bacteria imbalances have been linked to irritable bowel syndrome (IBS) and irritable bowel diseases like ulcerative colitis and Crohn’s disease.

Fortunately, scientific evidence suggests that diets high in nutrients protect against digestive diseases.

Therefore, eating a diet based on whole foods and limiting the intake of processed foods may be best for optimal digestion.

Summary: Diets high in processed foods have been linked to a higher risk of digestive disorders. Eating a diet low in food additives, trans fats, and artificial sweeteners may improve your digestion and protect against digestive diseases.

2. Get plenty of fiber

It’s common knowledge that fiber is beneficial for good digestion.

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Soluble fiber absorbs water and helps add bulk to your stool. Insoluble fiber acts like a giant toothbrush, helping your digestive tract keep everything moving along.

Soluble fiber is found in oat bran, legumes, nuts, and seeds, while vegetables, whole grains, and wheat bran are good sources of insoluble fiber.

A high-fiber diet has been linked to a reduced risk of digestive conditions, including ulcers, reflux, hemorrhoids, diverticulitis, and IBS.

Prebiotics are another type of fiber that feed your healthy gut bacteria. Diets high in this fiber have been shown to reduce the risk of inflammatory bowel conditions.

Prebiotics are found in many fruits, vegetables, and grains.

Summary: A high-fiber diet promotes regular bowel movements and may protect against many digestive disorders. Three common types of fiber are soluble and insoluble fiber, as well as prebiotics.

3. Add healthy fats to your diet

Good digestion may require eating enough fat. Fat helps you feel satisfied after a meal and is often needed for proper nutrient absorption.

Additionally, studies have shown that omega-3 fatty acids may decrease your risk of developing inflammatory bowel diseases like ulcerative colitis.

Foods high in beneficial omega-3 fatty acids include flaxseeds, chia seeds, nuts (especially walnuts), and fatty fish like salmon, mackerel, and sardines.

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Summary: Adequate fat intake improves the absorption of some fat-soluble nutrients. Moreover, omega-3 fatty acids reduce inflammation, which may prevent inflammatory bowel diseases.

4. Stay hydrated

Low fluid intake is a common cause of constipation.

Experts recommend drinking 50–66 ounces (1.5–2 liters) of non-caffeinated fluids daily to prevent constipation. However, you may need more if you live in a warm climate or exercise strenuously.

In addition to water, you can also meet your fluid intake with herbal teas and other non-caffeinated beverages such as seltzer water.

Another way to help meet your fluid intake needs is to include fruits and vegetables high in water, such as cucumber, zucchini, celery, tomatoes, melons, strawberries, grapefruit, and peaches.

Summary: Insufficient fluid intake is a common cause of constipation. Increase your water intake by drinking non-caffeinated beverages and eating fruits and vegetables with high water content.

5. Manage your stress

Stress can wreak havoc on your digestive system.

It has been associated with stomach ulcers, diarrhea, constipation, and IBS.

Stress hormones directly affect your digestion. When your body is in fight-or-flight mode, it thinks you don’t have time to rest and digest. During periods of stress, blood and energy divert from your digestive system.

Additionally, your gut and brain are intricately connected — what affects your brain may also impact your digestion.

Stress management, meditation, and relaxation training have all been shown to improve symptoms in people with IBS.

Other studies have found that cognitive behavioral therapy, acupuncture, and yoga have improved digestive symptoms.

Therefore, incorporating stress management techniques like deep belly breathing, meditation, or yoga may improve your mindset and digestion.

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Summary: Stress negatively impacts digestion and has been linked to IBS, ulcers, constipation, and diarrhea. Reducing stress can improve digestive symptoms.

6. Eat mindfully

Eating too much too quickly is easy if you’re not paying attention, which can lead to bloating, gas and indigestion.

Mindful eating is the practice of paying attention to all aspects of your food and the process of eating.

Studies have shown that mindfulness may reduce digestive symptoms in people with ulcerative colitis and IBS.

To eat mindfully:

Summary: Eating slowly and mindfully and paying attention to every aspect of your food, such as texture, temperature, and taste, may help prevent common digestive issues such as indigestion, bloating, and gas.

7. Chew your food

Digestion starts in your mouth. Your teeth break down the food into smaller pieces so that the enzymes in your digestive tract are better able to break it down.

Poor chewing has been linked to decreased nutrient absorption.

When you chew your food thoroughly, your stomach has to do less work to turn the solid food into the liquid mixture that enters your small intestine.

Chewing produces saliva; the longer you chew, the more saliva is made. Saliva helps start the digestive process in your mouth by breaking down the carbs and fats in your meal.

In your stomach, saliva acts as a fluid mixed with solid food so that it smoothly passes into your intestines.

Chewing your food thoroughly ensures that you have plenty of saliva for digestion. This may help prevent symptoms such as indigestion and heartburn.

What’s more, the act of chewing has even been shown to reduce stress, which may also improve digestion.

Summary: Chewing food thoroughly breaks down so it can be digested more easily. The act also produces saliva, which is needed to properly mix food in your stomach.

8. Get moving

Regular exercise is one of the best ways to improve your digestion.

Exercise and gravity help food travel through your digestive system. Therefore, taking a walk after a meal may assist your body in moving things along.

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One study in healthy people showed that moderate exercise, such as cycling and jogging, increased gut transit time by nearly 30%.

In another study in people with chronic constipation, a daily exercise regimen including 30 minutes of walking significantly improved symptoms.

Additionally, studies suggest that exercise may reduce symptoms of inflammatory bowel diseases due to anti-inflammatory effects, such as decreasing inflammatory compounds in your body.

Summary: Exercise may improve digestion and reduce constipation symptoms. It can also help reduce inflammation, which may be beneficial in preventing inflammatory bowel conditions.

9. Slow down and listen to your body

When you’re not paying attention to your hunger and fullness cues, it’s easy to overeat and experience gas, bloating, and indigestion.

It’s commonly believed that it takes 20 minutes for your brain to realize that your stomach is full.

While there’s not a lot of hard science to back up this claim, it does take time for hormones released by your stomach in response to food to reach your brain.

Therefore, eating slowly and paying attention to how full you’re getting is one way to prevent common digestive problems.

Additionally, emotional eating negatively impacts your digestion. In one study, people who ate when anxious experienced higher levels of indigestion and bloating.

Taking the time to relax before a meal may improve your digestive symptoms.

Summary: Not paying attention to your hunger and fullness cues and eating when you’re emotional or anxious can negatively impact digestion. Taking time to relax and pay attention to your body’s cues may help reduce digestive symptoms after a meal.

10. Ditch bad habits

You know that bad habits such as smoking, drinking too much alcohol, and eating late at night aren’t great for your overall health.

And they may also be responsible for some common digestive issues.

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Smoking

Smoking nearly doubles the risk of developing acid reflux.

Furthermore, studies have shown that quitting smoking improves these symptoms.

This bad habit has also been associated with stomach ulcers and increased surgeries in people with ulcerative colitis and gastrointestinal cancers.

If you have digestive issues and smoke cigarettes, keep in mind that quitting may be beneficial.

Alcohol

Alcohol can increase acid production in your stomach and may lead to heartburn, acid reflux, and stomach ulcers.

Excessive alcohol consumption has been linked to bleeding in the gastrointestinal tract.

Alcohol has also been associated with inflammatory bowel diseases, leaky gut, and harmful changes in gut bacteria.

Reducing your consumption of alcohol may help your digestion.

Late-night eating

Eating late at night and then sleeping can lead to heartburn and indigestion.

Your body needs time to digest, and gravity helps keep the food you eat moving in the right direction.

Additionally, when you lie down, the contents of your stomach may rise up and cause heartburn. Lying down after eating is strongly associated with an increase in reflux symptoms.

If you experience digestive issues at bedtime, try waiting three to four hours after eating before bed to give the food time to move from your stomach to your small intestine.

Summary: Bad habits such as smoking, drinking too much alcohol, and eating late at night can cause digestive issues. To improve digestion, try to avoid these damaging habits.

11. Incorporate gut-supporting nutrients

Certain nutrients may help support your digestive tract.

Probiotics

Probiotics are beneficial bacteria that may improve digestive health when taken as supplements.

These healthy bacteria assist digestion by breaking down indigestible fibers that can cause gas and bloating.

Studies have shown that probiotics may improve bloating, gas, and pain symptoms in people with IBS.

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What’s more, they may improve symptoms of constipation and diarrhea.

Probiotics are found in fermented foods such as sauerkraut, kimchi, miso, and yogurts with live and active cultures.

They’re also available in capsule form. An excellent general probiotic supplement will contain a mix of strains, including Lactobacillus and Bifidobacterium.

Glutamine

Glutamine is an amino acid that supports gut health. It has been shown to reduce intestinal permeability (leaky gut) in people who are critically ill.

You can increase your glutamine levels by eating turkey, soybeans, eggs, and almonds.

Glutamine can also be taken in supplement form, but talk to your healthcare practitioner first to ensure that it’s an appropriate treatment strategy for you.

Zinc

Zinc is a mineral critical for a healthy gut, and a deficiency can lead to various gastrointestinal disorders.

Supplementing with zinc is beneficial in treating diarrhea, colitis, leaky gut, and other digestive issues.

The recommended daily intake for zinc is 8 mg for women and 11 mg for men.

Foods high in zinc include shellfish, beef, and sunflower seeds.

Summary: Certain nutrients are necessary for a healthy digestive tract. Ensuring that your body gets enough probiotics, glutamine, and zinc may improve your digestion.

Summary

Simple diet and lifestyle changes may help improve your digestion if you experience occasional, frequent, or chronic digestive symptoms.

Eating a whole-foods diet high in fiber, healthy fat, and nutrients is the first step toward good digestion.

Practices such as mindful eating, stress reduction, and exercise can also be beneficial.

Finally, ditching bad habits that may affect your digestion — such as smoking, drinking too much alcohol, and late-night eating — may also help relieve symptoms.

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