Knowledge zone

What is the microbiome?

Trillions of microorganisms live in the human gut – primarily bacteria, but also yeasts and other microbes. Together they form the so-called microbiome or gut flora.

These microorganisms perform numerous tasks. They support digestion, help with the utilization of certain nutrients, and are closely linked to the immune system.

Today we know: It's not individual bacteria that matter, but the diversity of the microbiome. The more varied the diet, the better different bacterial species can be nourished.

Why does diet play such an important role?

What ends up on your plate daily also influences the composition of the gut flora.

Plant-based foods in particular provide fiber and natural plant compounds that serve as food for many beneficial gut bacteria.

A varied diet with vegetables, fruit, whole grains, legumes, nuts, and seeds helps support the microbiome in the long term.

12 Foods for a Diverse Gut Flora

1. Oat Flakes

Oats provide valuable fiber and are excellent as a breakfast or base for overnight oats.

2. Flaxseeds

Flaxseeds contain soluble fiber and can be easily incorporated into muesli, smoothies, or bread.

3. Chia Seeds

Chia seeds provide fiber and swell in liquid. They are ideal for porridge or yogurt alternatives.

4. Legumes

Lentils, beans, and chickpeas are among the most fiber-rich foods and also provide plant-based protein.

5. Sauerkraut

Naturally fermented sauerkraut is one of the best-known fermented foods in Germany.

6. Kimchi

This Korean specialty adds variety to the menu and delivers intense flavors.

7. Whole-Grain Products

Whole-grain bread, brown rice, or whole-wheat pasta contain significantly more fiber than their refined alternatives.

8. Apples

Apples contain pectin – a soluble fiber often mentioned in connection with a balanced diet.

9. Berries

Berries provide fiber and phytochemicals and taste great fresh or in breakfast dishes.

10. Walnuts

Walnuts add healthy fatty acids to the diet and are perfect for muesli or salads.

11. Almonds

Almonds are versatile and provide fiber as well as plant-based protein.

12. Vegetable Variety

Broccoli, carrots, cauliflower, bell peppers, or spinach – the more colorful your plate, the more varied your intake of different plant compounds tends to be.

Fiber – the favorite food of gut bacteria

Fiber reaches the large intestine largely undigested. There, it serves as a food source for many beneficial gut bacteria.

A high-fiber diet can help

• to support the diversity of the microbiome,
• to stay full longer,
• to promote normal digestion,
• to make the daily diet more varied.

Adults often do not reach the recommended amount of fiber. Even small changes can help increase intake.

Simple habits for a healthy gut

It's not just individual foods, but the entire lifestyle that plays a role.

These habits can be easily integrated into daily life:

• eat different types of vegetables and fruit daily,
• choose whole grain products regularly,
• include legumes in your diet more often,
• try fermented foods,
• drink enough fluids,
• eat slowly and mindfully,
• Incorporate exercise into your daily routine.

Often it is these small routines that make a difference in the long run.

Myths about gut health

“Only probiotics are important.”

Probiotic foods can be part of a balanced diet. However, fiber is just as important, as it serves as food for many gut bacteria.

“The more fiber, the better.”

A high-fiber diet is sensible. However, anyone who has eaten little fiber so far should increase the amount slowly and drink enough fluids.

“A single superfood is enough.”

For the gut flora, variety is key. Different plant-based foods provide different fibers and plant compounds.

Conclusion

A healthy microbiome doesn't develop overnight. What matters is a varied diet with plenty of plant-based foods, fiber, and natural ingredients.

Even small changes – more whole grains, more frequent legumes, regular nuts, seeds, or fermented foods – can help make your diet more varied.

Anyone who wants to support their gut in the long term benefits above all from variety. You can find exactly this diversity at Marktbio – from legumes to nuts and seeds to fermented specialties and other natural foods.