Summer holidays are traditionally associated with freedom, outdoor games and a change in diet. Winter porridges are replaced by fresh berries, fruits from grandma's garden, street fast food and, of course, ice cream. However, for a child's gastrointestinal tract (GI), this period often turns into a real stress test.

The change of seasons is not only a change in the weather outside the window, but also a profound transformation within our bodies. Our gastrointestinal tract and the trillions of microorganisms that inhabit it (the microbiome) are evolutionarily adapted to seasonal changes in diet.

When we talk about family traditions, we most often recall shared holidays, values, and, of course, eating habits. However, modern science suggests looking at the family from a completely new angle - as a single microbial ecosystem. Studies prove that the composition of our intestinal microflora depends not so much on genetics as on the environment: the greatest influence on the formation of our microbiome is who we live with.