Findings of a study done on 7000 American people during a few years has shown that Mediterranean diet is very effective and useful for being and staying healthy and not gaining weight. This diet contains using food such as olive oil, nuts, fruit, vegetable, beans and fish at least 3 times a week. Nuts are filling so you won’t feel hungry if you have them many time s a day. Although this diet is somehow unusual, it’s more effective than taking lots of different drugs to get rid of diseases such as high blood pressure, heart disease and diabetes. People who were following the diet suffered from heart attack, brain stroke and diseases 30 % less than regular people.