A healthy diet can help you maintain a proper body weight, reduce your risk of certain diseases and improve your quality of life. However, there is no universal diet, common, easy to follow and recommendable for everyone, regardless of their place of living, gender, daily activity and likings. We have to know the rationale of each diet, their pros and cons and it is important to choose a diet plan that fits our goals and lifestyles. During the mobility in Alquerias, in Spain, the students developed the rules for some, most popular diets. They discussed their does and don’ts, as well as benefits and risks and designed leaflets.