Introduction
You've heard of probiotics. Maybe prebiotics too. But do you know the difference between them and why you actually need both? In this article, we'll explain these two terms in an easy-to-understand way and help you figure out how to incorporate them into your daily life.
What are probiotics?
Probiotics are live microorganisms – primarily bacteria and yeasts – which, when consumed in sufficient quantities, have a beneficial effect on health. They directly enrich the gut microbiome with beneficial bacteria.
The most well-known probiotic strains are from the genera Lactobacillus and Bifidobacterium.
Where do we find them?
- Yogurt with live cultures
- Kefir
- Sauerkraut and kimchi
- Miso and tempeh
- Probiotic dietary supplements
What do they do?
- Restore gut flora after antibiotics
- Improve digestion
- Strengthen the immune system
- Reduce symptoms of IBS and diarrhea
What are prebiotics?
Prebiotics are not living organisms – they are specific types of fiber and plant compounds that serve as food for beneficial bacteria in the gut. In other words, prebiotics feed probiotics.
The most well-known prebiotics include inulin, fructooligosaccharides (FOS), and galactooligosaccharides (GOS).
Where do we find them?
- Garlic and onions
- Leeks and asparagus
- Bananas (especially slightly unripe)
- Oats and barley
- Chicory and artichokes
- Prebiotic dietary supplements
What do they do?
- Nourish and multiply beneficial bacteria
- Improve mineral absorption (calcium, magnesium)
- Regulate blood sugar levels
- Support regular bowel movements
What's the difference – in brief?
| Probiotics | Prebiotics | |
|---|---|---|
| What are they? | Live microorganisms | Plant fibers |
| Function | Add beneficial bacteria | Feed beneficial bacteria |
| Found in | Fermented foods, supplements | Fruits, vegetables, grains |
| Effect | Fast, direct | Slower, but long-lasting |
What do you need – one or both?
Short answer: both!
Probiotics and prebiotics work synergistically. Imagine probiotics as seeds, and prebiotics as the fertilizer that nourishes them. Without suitable "soil" and "fertilizer," even the best probiotics cannot establish and multiply in the gut.
That's why more and more food supplements combine both in so-called synbiotics – products containing both probiotics and prebiotics for maximum effect.
When to consider supplements?
Diet is the foundation, but supplements can help in the following situations:
- After taking antibiotics – to restore gut flora
- For chronic digestive problems – bloating, constipation, diarrhea
- For stress and disturbed sleep – when the microbiome is under pressure
- For a monotonous diet – when you don't get enough diverse fibers
Signs your body needs support
Conclusion
Probiotics and prebiotics are not competitors – they are partners. Together, they build and maintain a healthy gut microbiome, which is fundamental to good health. Include both in your daily life – through food and, if necessary, through quality supplements.
Consult your doctor or pharmacist before starting any new dietary supplements.