Intestinal bacteria like coffee and drink

8-04-2017, 12:02
Our health largely depends on who lives with us inside - we are talking now, of course, about the notorious gastrointestinal microflora. It affects the immune system, the metabolism, even, according to some information, the higher nervous activity. It is believed that good bacteria help us avoid obesity and diabetes, the bad ones, on the contrary, spoil the metabolism and even cause immune disorders.
Intestinal bacteria like coffee and drink

E. coli is one of the most famous bacteria found in the intestines.
Intestinal bacteria like coffee and drink

Naturally, physicians and biologists try their best to understand what affects the composition of the intestinal microflora. First of all, it is, of course, food - but, in addition, our bacteria can be affected by diseases that we have been ill or had had in the past, and lifestyle, and various non-food substances that enter our body, from antibiotics to drugs .
Recently, researchers from the Catholic University of Leuven published the results of a large-scale study, which tried to bring together the factorsaffecting the balance between different types of germs that live in the gastrointestinal tract.
Jeran Raes (Jeroen Raes) and his colleagues analyzed the microflora of almost 4 thousand residents of the United States, Britain, Belgium and the Netherlands, adding to them for comparison data from those who live in Papua New Guinea, Peru and Tanzania.
In total, it was possible to determine at least 664 types of bacteria, of which 14 were universal for almost all people: they were in 95% of the samples, and the share of species in these 14 genera accounts for 72% of the total bacterial diversity of the microflora. The “personal” species composition of microorganisms is different for each of us, however, such differences are manifested mainly within the same 14 basic genera.
It is believed that the more diverse the microflora, the better for the host. In an article in Science, the authors describe 126 factors that influence bacterial diversity. Most of them are dietary: for example, if a person eats a lot of fruits, vegetables and yogurts, then for his bacteria - and therefore, for himself - this is good.
The fact that fruits and vegetables help to properly adjust the microflora can be heard quite often, so in this case, new results are consistent with earlier work.However, in addition, it turned out that the bacteria are well influenced by tea, coffee and wine, from which the variety of microbes increases again.
Carbohydrate food, as well as chips, popcorn and other "cookies" along with sweet drinks predictably proved harmful to the microflora, but whole milk also unexpectedly got into the same row. However, the researchers stipulate that they only state the connection between the bacterial composition and the diet - to understand exactly how coffee or wine stimulate microbial growth, detailed experiments will be needed.
As for medicinal and medical factors, it is safe to say that antibiotics, as well as osmotic laxatives, benzodiazepines, antidepressants, antihistamines and hormones and some others, of course, affect the variety of bacteria.
But in some cases, the results were not at all those that could be expected. For example, many believe that the composition of the microflora is strongly influenced by the way a person was born, in the usual way or by caesarean section.
However, a new study did not find any difference between the two: if the “mode of birth” somehow influences bacteria, then with age, obviously,everything is overlapped by other factors. The same thing, by the way, it turned out about breastfeeding - although it is believed that for those who are breastfed, the microflora becomes more diverse, no evidence to that was found right now.
It’s too early to give specific clinical recommendations from the results obtained, and the researchers themselves pursued other goals - they didn’t want to make sure once again that the microflora depended on diet, but to understand how different external and internal factors determine its condition.
If we are not talking about individual types of microorganisms, not about how a particular bacterium reacts to yogurt or an antidepressant, but to try to assess the variability of the diversity as a whole, then the new results are certainly a step forward, but the authors themselves emphasize that they managed to explain only 7% of variations of bacterial diversity.
In order to describe the gastrointestinal ecosystem as a whole, it is necessary to analyze its species composition in several tens of thousands of people.

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