What is not good for the intestines

What is bad for the gut

Nutrition

A mostly plant-based diet, home-cooked meals, unprocessed seasonal foods, and adequate fluid intake have a positive effect on gut health.

Alcohol

Chronic alcohol consumption damages the mucous membranes and can cause stomach and intestinal inflammation. Additionally, alcohol burdens the liver and increases the risk of colon cancer.

Sugar

Industrial sugar and simple carbohydrates like white flour products promote dysbiosis in the gut. Sugary drinks provide large amounts of simple sugars, which enter the bloodstream quickly and promote unfavorable metabolic processes.

Fructose should also be consumed in moderation. While fruit is healthy, too much fructose can cause gut and liver problems. Fiber-rich fruits such as apples, pears, kiwi, and berries with low sugar content are recommended.

Fast food and processed meals

Industrially produced foods often contain sugar, fat, artificial additives, and trans fats, which promote inflammation and impair gut health.

Meat

Smoked, cured, and red meat can promote inflammatory processes in the body. The heme iron it contains damages the gut lining and is associated with colon cancer.

Unhealthy fats

Fried foods, margarine, and highly processed fats promote inflammation and increase the risk of cardiovascular disease, diabetes, and colon cancer.

Medications (e.g., antibiotics)

Antibiotics are often necessary but also destroy beneficial gut bacteria. After antibiotic therapy, it can take up to six months for the gut flora to regenerate.

Stress

Stress has a particularly negative effect on the gut. It can cause bloating, diarrhea, constipation, and psychological symptoms.

Overweight

Overweight is often associated with a changed gut microbiome. Underweight can also negatively affect gut flora.

Carbonation and bloating foods

Carbonated drinks as well as foods like raw onions, garlic, beans, or cabbage can cause increased bloating.

What you can do instead to support your gut

Fruits and vegetables

Leeks, onions, and garlic contain inulin and act as prebiotics. Steamed, they are easier to digest than raw.

Fiber

Psyllium husks, flaxseed, chia seeds, legumes, whole grains, and oats support the gut lining.

Resistant starch

Chilled potatoes, rice, and pasta contain resistant starch, which positively affects the gut microbiome.

Bitter compounds

Bitter compounds promote digestion, stimulate the production of digestive juices, and improve meal tolerance.

Fermented foods

Miso, kimchi, yogurt, and kombucha provide lactic acid bacteria that support gut health.

Regular meals

Eat at set times and pay attention to appropriate portion sizes.

Chew thoroughly

Slow and mindful eating improves digestion and prolongs satiety.

Drink enough

At least 1.5 liters of still water or unsweetened tea per day support the gut lining.

Prebiotics

Inulin, FOS, pectin, beta-glucans, and acacia fibers serve as nutrients for beneficial gut bacteria.

Good sugar alternatives

Honey, stevia, or maple syrup are more gut-friendly alternatives to refined sugar.

Rest periods for the gut

There should be at least a four-hour break between meals. Intermittent fasting can also relieve the gut.

Adequate sleep and relaxation

7–8 hours of sleep per night and regular recovery periods lower stress levels and promote gut health.

Gentle preparation

Steaming, gentle cooking, and soaking legumes and nuts improve digestibility.

Conclusion

A balanced diet with fiber-rich foods, adequate fluids, and mindful rest periods supports a healthy gut flora. Reducing harmful factors and establishing positive habits strengthens long-term gut health.