It's popular to talk about how important a person's gut biome is. But to young readers, the millions of bacteria that live in the gut and help us digest and move our food along might be big news! Full of colorful, clear diagrams and simple explanations, this book takes readers on a journey through the gut, alongside some helpful kid guides that make the journey even more fun. An excellent companion to any studies of the human body, this volume also includes problems in the gut and what issues they can cause.