In a randomized clinical trial, lower heart disease in participants who eat a mediterranean diet compared with participants who eat a low-fat diet was attributed to:

High olive oil and mixed nut intake.

Explanation:

Mediterranean diet is highly recommended to lower down the risk of cardiovascular complications in both healthy adults and cardiovascular disease patients. the Mediterranean diet consisted of fresh fruits and vegetables, whole grain beans, nuts, fish, olive oil, and red wine. All these food products are healthy and beneficial in lower cholesterol and blood pressure levels. Olive oil contains large amount of antioxidants, and monosaturated fats thus it lowers LDL cholesterol. Moreover, Nuts also lowers cholesterol and improves cardiovascular disease complications.