As the famous saying goes, we are what we eat. There is an objection to scientists: we are what the bacteria living in our intestines eat. They determine the duration of our lives. Based on this postulate, researchers from McGill University fed fruit flies with a variety of supplements and probiotics, which contributed to a 60% extension in the flies’ life. They protected them from chronic diseases caused by aging. In scientific publications, the results of experiments have already been published, testifying to the beneficial effects of intestinal bacteria on health. Scientists synthesized biotic. They made this supplement from probiotics and enriched it with polyphenol. And they added it to the diet of fruit flies. Synbiotic-eating flies were able to live up to 66 days, which is 26 days more than their relatives who did not receive this supplement. Moreover, they have sharply decreased signs of age-related processes, such as a decrease in insulin resistance, oxidation and inflammation. Lead author of the study and professor of biomedical engineering at the Department of Medicine, McGill University – Satya Prakash. According to him, probiotics significantly affect the structure of intestinal microflora. And this applies not only to its composition, but also to the quality of the metabolism of the food we consume. So a single probiotic formulation can simultaneously affect a whole set of signaling pathways. The same mechanism makes it clear why the only formulation presented in the article affects so many different markers so much. Prakash added that the fruit fly is remarkably similar to mammals – in 70% of the biochemical pathways. Therefore, he hopes that such results can be obtained with a person.