As diseases, like atopy, diabetes, ostearthritis, hypothyroidism, irritable bowl syndrome etc., are affecting the lives of millions of people, they are also a big burden to millions of dogs and their owners. We are interested in associations between diseases, nutrition, genes, environment, and microbiota. By using client-owned dogs as our study population, we are hoping to help both man's best friend and people to have happier and healthier lives.