7. Belgium
Mean BMI: 25.5
In Belgium, that’s next one on the list of thinnest countries in Europe, the percentage of physically active people is around 40. In order to encourage physical activity among its citizens, Belgian schools are promoting a healthier way of life. In Flanders, for example, school breaks are included through Sports move your School (Sport beweegt je school) and Healthy School (Gezonde School) programs.