The Mediterranean diet has a more comprehensive structure and a wider variety of vitamins than the average diet, which can slowly improve suboptimal health. The Mediterranean diet is a style of eating that focuses on vegetables, fruits, fish, grains, legumes and olive oil, and limits the intake of red meat, sweets and any food rich in saturated fatty acids in southern European countries such as Greece, Spain, France and southern Italy, which are located on the Mediterranean coast. This style allows people to eat a more varied diet and consume a more comprehensive range of nutrients, allowing them to eat healthier. However, food is not a substitute for medication, and the treatment of diseases still requires the intervention of medication.