With the onset of summer, we often fall into gastronomic fanaticism: we try to eat as many fresh gifts of nature as possible to saturate the body with vitamins and lose excess weight. However, gastroenterologists and microbiologists every summer record a surge in complaints of bloating, cramps, heaviness and discomfort in the abdomen after eating seemingly completely healthy food. Modern 4P medicine proves that we feed not only ourselves, but also our microbiome.