Humans carry around 1.5 kg of microbes on average? Most of them are bacteria, but they also include fungi, yeasts, viruses, etc.
The name gut flora is actually incorrect, as it is mainly bacteria and the term flora usually refers to plants. In addition, it is not only about bacteria in the gut, but also in the stomach or mouth, for example….
Everyone has about 150 species of bacteria in his/her gut. Which bacterial species these are varies greatly from person to person. It depends, for example, on factors such as genes, age, diet and environment. Our gut flora is therefore as unique as our fingerprint.
70% of our immune system is located in the gut. Gut bacteria train our immune system to leave good bacteria alone and attack bad bacteria.
Children raised in rural areas are less likely to suffer from allergies than those raised in cities. This is probably because through contact with bad and good bacteria, their immune system is better trained.
Fibre is an important food source for our gut bacteria. With a high-fibre diet, you contribute to healthy digestion.
Source: MLD Foundation