Meet Lily and her tiny tummy hero, Nitty! When Lily's tummy starts to ache, Nitty and the other Gut Buddies set out to show her how the foods she eats can make all the difference. Together they discover the tug of war between the good and bad bacteria inside her tummy and how fruits, veggies and whole foods help keep the good bacteria happy and strong. This book is a fun and gentle story that helps kids understand their microbiome, make better food choices and keep their tummies smiling!