Considering boom Around probiotic foods and other fermented food products, it is always good to stop thinking for a moment about the reasons why we give so great importance to the health of our intestines. In our stomach and intestines there are hundreds of different types of "good bacteria" that help us digest what we consume.
This is what is called microbiota in the intestines. This "good plant" is made up of the germs in which we were born – the direct inheritance of our mothers – and those that we have acquired thanks to our diet and way of life. Each person has a unique bacterial mixture in their organism. It is assumed that certain foods promote "better flora" than others.
Foods rich in fiber, fruits and vegetables, fermented dairy products such as yoghurt or kefir, for example, tend to grow the "good bacteria" in our digestive tract and reject "bad bacteria" and leave them without space to thrive. Researchers still have a lot to learn about the functioning of our microbiota. Here are the latest findings.
Bacteria and mental health
Anxiety, depression and autism have been attributed to the mixture of present or absent bacteria in the digestive system of affected people. In a study published in Belgium, it was claimed that patients diagnosed with depression lacked certain types of bacteria. Investigations are continuing with the aim of developing treatments and mechanisms for bacterial reopulation of the intestines.
The microbiota map
The institutions of the Kingdom of Great Britain, Canada and Australia worked together in the program to draw a map of all the bacteria present in the human digestive system. So far, scientists have cataloged 273 different bacterial species. They hope that, like the Human Genome Project, their research will lead to a comprehensive understanding of the functions of bacteria.
Bacteria and physical health
Researchers have found correlations between certain diseases – type 2 diabetes, Crohn's disease, ulcerative colitis, colorectal cancer, high blood pressure and heart disease, for example – unhealthy intestines. The gut microbiota of the patients were analyzed very differently from that of completely healthy people.
Yogurt and strawberries, a healthy combination.
Use of probiotics
The ingestion of probiotic foods to promote "good flora", when there is already a healthy microbiota of intestines, has been done by various scientific studies. At the Weizmann Institute of Science in Israel, it was determined that the digestive system with enough "good bacteria" had rejected the new bacteria supplied by probiotic food and denied the space to thrive.
Center scientists have also discovered that probiotics consume to compensate for the loss of "good flora" created by the ingestion of antibiotics and slows down the normal process of repopulating the intestines with "good bacteria" instead of accelerating it … By the way, it is important to differentiate probiotics from probiotics; The latter is less known.
Use of probiotics
Prebiotics such as yogurt contain bacterial elements and need to produce certain chemicals. These chemicals find their way into the bloodstream and can help lower blood pressure. Fiber foods (fruits such as bananas and vegetables such as onions, garlic and asparagus) and whole grains are a great parabiot for many types of bacteria.
(erc / jov)
Deutsche Welle is Germany's international broadcaster and produces independent journalism in 30 languages. Follow us Facebook Facebook Twitter | YouTube