Mediterranean diet
The Mediterranean diet is associated with a reduction in all-cause mortality in observational studies. There is some evidence that the Mediterranean diet lowers the risk of heart disease and early death, although a 2019 review determined that the evidence had low quality and was uncertain. The American Heart Association and American Diabetes Association recommend the Mediterranean diet as a healthy dietary pattern that may reduce the risk of cardiovascular diseases and type 2 diabetes, respectively. The Mediterranean diet may help with weight loss in obese people. The Mediterranean diet is one of three healthy diets recommended in the 2015-2020 US Dietary Guidelines, which also include the DASH diet or a vegetarian diet.