Mediterranean diet
The most commonly understood version of the Mediterranean diet was presented, among others, by Walter Willett and colleagues of Harvard University's School of Public Health since the mid-1990s. The Mediterranean diet is based on a paradox: although the people living in Mediterranean countries tend to consume relatively high amounts of fat, they have far lower rates of cardiovascular disease than in countries like the United States where similar levels of fat consumption are found. A parallel phenomenon is known as the French Paradox. By 2011, the Mediterranean diet was included by some authors as a fad diet promoted for losing weight. As of 2018, the value of the traditional Mediterranean diet was questioned due to homogenization of dietary choices and food products in the global economy, yet clinical research activity remained high, with favorable outcomes reported for various disease conditions, such as metabolic syndrome.