Perhaps this information has already been published on the forum. It seemed to me very interesting and worthy of attention.
Excess fat in the liver cells can accumulate due to chronic poisoning with some substances - and most often this substance is alcohol. But fatty liver disease is very common in people who don't drink, and in this case, overeating and various metabolic problems are blamed. But it turns out that in some cases, non-alcoholic fatty liver disease still occurs due to alcohol, only alcohol here is of internal origin - it is produced by special varieties of intestinal bacteria. It all started with a few patients with non-alcoholic fatty liver disease who had blood alcohol levels several times higher than the norm, although none of them drank. At first, everything was attributed to yeast, which ferments carbohydrates in the digestive system: indeed, there are times when the yeast of our microflora is too active and produces too much alcohol. But treatment with antifungal drugs did not help - obviously, someone else produced the alcohol. Among the intestinal bacteria of those few patients, two strains of Klebsiella pneumoniae were found that produced a lot of ethanol. The researchers took microflora samples from dozens more patients with non-alcoholic fatty liver disease and compared them with microflora samples from healthy people. In patients in 60% of cases, "high-alcohol" strains of K. pneumoniae lived in the intestines . When these same strains were transplanted into mice, the animals developed symptoms of non-alcoholic fatty liver disease; if the mice were then given antibiotics, the disease disappeared. That is, in some cases, non-alcoholic fatty liver disease is still alcoholic. Both patients and doctors dealing with non-alcoholic fatty disease should be keep in mind such an alcohol-bacterial factor.