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The Mediterranean diet is based upon the eating patterns of traditional cultures in the Mediterranean region. Several noted nutritionists and research projects have concluded that this diet is one of the most healthful in the world in terms of preventing such illnesses as heart disease and cancer, and increasing life expectancy.
The countries that have inspired the Mediterranean diet all surround the Mediterranean SeA、These cultures have eating habits that developed over thousands of years. InEurope, parts of Italy, Greece, Portugal, Spain, and southern France adhere to principles of the Mediterranean diet, as do Morocco and Tunisia in NorthAfricA、Parts of theBalkan region and Turkey follow the diet, as well as MiddleEastern countries like Lebanon and SyriA、The Mediterranean region is warm and sunny, and produces large supplies of fresh fruits and vegetables almost year round that people eat many times per day. Wine, bread, olive oil, nuts, and legumes are other staples of the region, and the Mediterranean Sea has historically yielded abundant quantities of fish.
International interest in the therapeutic qualities of the Mediterranean diet began back in the late 1950s, when medical researchers started to link the occurrence of heart disease with diet.
Dr.Ancel Keys performed an epidemiological analysis of diets around the world (epidemiology being the branch of public health that studies patterns of diseases and their potential causes among populations). 
it concluded that the Mediterranean people in the study enjoyed some significant health advantages. The Mediterranean groups had lower mortality rates in all age brackets and from all causes, particularly from heart disease. The study also showed that the Mediterranean diet is as high or higher in fat than other diets, obtaining up to 40 percent of all its calories from fat. It has, however, different patterns of fat intake. Mediterranean cooking uses smaller amounts of saturated fat and higher amounts of unsaturated fat, mostly in the form of olive oil. Saturated fats are fats that are found principally in meat and dairy products, although avocados, some nuts, and some vegetable oils also contain them. Saturated fats are used by the body to make cholesterol, and high levels of cholesterol have since been directly related to heart disease.Several other studies have validated Keys’ findings regarding the good health to people in Mediterranean countries. The World Health Organization (WHO) showed in a 1990 analysis that four major Mediterranean countries (Spain, Greece, France, and Italy) have longer life expectancies and lower rates of heart disease and cancer than otherEuropean countries andAmericA、The data are significant because the same Mediterraneans frequently smoke and don’t have regular exercise programs like manyAmericans, which means that other variables may be responsible. Scientists have also ruled out genetic differences, because Mediterraneans who move to other countries tend to lose their health advantages. These findings suggest that diet and lifestyle are major factors.
The Mediterranean diet gained even more notice whenDr. Walter Willett, head of the nutrition department
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