Your Invisible Team: The Gut Microbiome
Imagine an entire city of billions of tiny helpers living in your tummy! They work for you—but what exactly do they do?
1. What Exactly Is It?
An unimaginably large number of tiny organisms live in your gut: bacteria, fungi, and other microbes. Together, they are called the gut microbiome. They are so small that you cannot see them—but they are always there! Like a team, they help you digest food, produce vitamins, and even train your immune system. Some prefer apples, others love wholemeal bread. Every person has their own unique team—like a fingerprint, only invisible. Without them, your body would be far more vulnerable to problems. But don’t worry: most are friendly and just want to help!
2. Where Does It Come From?
You receive your microbiome as a gift at birth—from your mum! During breastfeeding or through skin contact, the first helpers come to you. Later, your body collects them from everywhere: while playing in the garden, petting animals, or eating fresh fruit. Even the air carries tiny inhabitants to you. The older you get, the more diverse your team becomes. What you eat, how much you move, and even whether you are stressed—all of this influences who moves in. Researchers say: a diverse microbiome is often a healthy microbiome.
3. What Are Researchers Investigating?
Scientists are still unravelling exactly how the microbiome interacts with your body. They know that some bacteria help reduce inflammation. Others may even influence your mood—but how remains unclear. In studies, they examine, for example, whether certain dietary fibres (like those in oatmeal) provide food for the good helpers. Or whether antibiotics not only eliminate harmful bacteria but also drive away beneficial ones. Much of it is still like a puzzle—researchers have only discovered a few pieces so far. Perhaps you will discover a new one someday!
4. An Experiment to Ponder
Observe what you eat over two days. Take notes: When did you eat plenty of vegetables, fruit, or whole grains? And when did you opt for sweets or fast food instead? Consider: How did you feel on those days? You might notice a difference—but don’t worry if you don’t! Your microbiome is patient. It thrives on variety, just like you. Why not try a new snack (e.g., natural yoghurt with berries) and see if you like it? Your tiny helpers will surely appreciate it!
For adults and professionals: the detailed page on the gut microbiome.
Frequently Asked Questions
Can I damage my microbiome?
Not completely! But if you eat only fast food, for example, or take antibiotics often, some of your helpers might disappear. Fortunately, many return when you start eating a varied diet again. Your body is a great gardener—it repairs a lot on its own.
Why does my fart sometimes smell funny?
Those are the exhaust fumes from your gut bacteria! Some leftover food produces gases that smell strong—like a rubbish bin. The more vegetables you eat, the milder the smell. But don’t worry: everyone farts, and it’s totally normal!
Can my bacteria talk to me?
Not with words, but they send signals! Through messenger substances, they tell your brain things like I’m full! or I don’t feel well. Researchers call this the gut-brain axis. Maybe you feel this as butterflies in your tummy when you’re excited. Cool, right?
Every statement on this page carries its evidence tier — proven, plausible or hypothesis — and leads to the original work. The decision in the individual case rests with the practitioner; we provide the connections.