“You know, I am a belly! There are many of them, and you may be one of them, lovers of good food, who have said this sentence to those around them – a story in particular of psychologically preparing the said entourage at the terrible moment when they will actually be hungry.
It turns out that these people, who seem totally dependent on their stomach variations, may well be manipulated by their stomachs. Or at least by the bacteria there.
According to Carlo Maley, co-author of an American study just published in the journal BioEssays, “the bacteria present in the intestines can be manipulative.” And the Science Daily site, which relays its conclusions, to continue:
“The microbes influence the food behavior and the dietary choices of the humans in order to favor the consumption of the nutrients allowing for them a better growth instead of simply living passively the nutrients which are in their way. “
You may not know it, but a whole bunch of bacteria frolic in your belly: “the intestines alone contain 1014 bacteria”, can we read in a study published in 2005. If this presence gives you high- heart, tell yourself that without these microorganisms, you would certainly be in a bad state, insofar as they actively contribute to our survival.
These bacteria form what is called a microbiome, and each has specific needs, as Science Daily points out:
“Some prefer fat, others sugar, for example. “
Others still love algae: this was the case with bacteria identified in the belly of the Japanese in 2010!
These organisms would therefore manage to let us know their preferences, by secreting certain molecules in our intestines, themselves linked “to the immune, endocrine and nervous systems”, explains the site I Fucking Love Science. In such a way that microbial wishes are duly dispatched to the brain, say the researchers behind the study, who then places the order. Which could partly explain certain irrepressible eating habits, or desires.
Fortunately, the researchers point out, the mechanism works in both directions. In the same way that bacteria tell us what to eat, we can get rid of some by changing our diet. “It’s a complete ecosystem, which evolves over a few minutes,” says Carlo Maley. […] By deliberately altering what we ingest, it is possible to measure changes in the microbiome within 24 hours. “
Observations that scientists have long hoped to be able to use to help fight obesity problems. Why not, eventually, consider a personalized cocktail of bacteria. As we already wrote in 2012:
“Everyone, depending on the nature and composition of their microbiota, would then be advised to have an adequate diet to keep their figure and stay in good health. “
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