The intestines need not only probiotics: how prebiotics and fiber work.

According to ТСН: Our intestines function best when they receive both probiotics and prebiotics, as well as a sufficient amount of fiber. This is essential for maintaining the balance of the microbiota — a large community of bacteria that influence digestion, immunity, skin condition, and even mood.

To understand how microbiota is formed, why probiotics should be consumed regularly, and what role prebiotics and fiber play in this, materials from various sources were analyzed.

How prebiotics work

Prebiotics are 'food' for beneficial bacteria, and they can be found in fruits, vegetables, legumes, and whole grains. They promote the formation of beneficial fatty acids in the intestines, which support the mucosa and limit the growth of harmful microbes.

Experts note that consuming large amounts of fatty, sugary, or processed foods can negatively affect the microbiota. Foods from the Mediterranean diet, such as vegetables, fruits, beans, nuts, and fiber, contribute to stable intestinal function. The most beneficial prebiotic foods include garlic, onions, bananas, asparagus, oats, seaweed, and legumes.

Foods that support the intestines

Dietitians identify several groups of products that most effectively 'feed' the intestines:

• Raspberries — one of the fruits with the highest fiber content.

• Ground flaxseeds — promote the growth of beneficial bacteria and provide omega-3.

• Fermented products and kefir — supply live cultures that help the microbiota remain diverse.

• Leafy greens — provide fiber and magnesium, which contribute to regular bowel movements.

• Shiitake mushrooms — contain beta-glucan, which strengthens the intestinal mucosa.

• Pumpkin seeds — a useful source of fiber and magnesium.

• Healthy fats — olive oil, avocado, and fatty fish reduce inflammation.

• Dark chocolate — contains polyphenols and fiber.

• Bone broth — supports the intestinal mucosa due to glycine and collagen.

• Bitter vegetables — chicory, arugula, and dandelion aid digestion.

Polyphenols from pomegranates, blueberries, green tea, and turmeric act as natural antioxidants and have anti-inflammatory effects.

When to see a doctor and what to avoid

Intestinal problems usually manifest as bloating, gas, diarrhea or constipation, heartburn, fatigue, or even mood changes. If such symptoms last for several days or recur, it is advisable to consult a doctor.

Experts also warn about the risks of detox diets and prolonged fasting: they do not contribute to cleansing the intestines and may harm the mucosa. A balanced diet, adequate hydration, consumption of plant-based foods, and regular intake of probiotics and fiber-rich products are the best options.