"A healthy diet to live better" is an interdisciplinary project based on the relationship between food and sport. Proper nutrition makes us better athletes but above all it makes us feel good and healthy. Food is the fuel for our body and is essential to grow, have health and strength. In today's society, children spend most of the day standing still in front of the television or computer, often consuming many snacks rich in calories that are not disposed of with movement. These attitudes produce an incidence of overweight that, over the years, can turn into obesity. It is important, from early childhood, to develop correct behaviors regarding nutrition and movement in order to promote adequate physical development and to implement the prevention of problems such as obesity and related diseases.