Olives are rich in vitamin E and other antioxidants that can help reduce the risk of various health conditions such as cancer, diabetes, and heart disease. They come from the olive tree and are commonly used in Mediterranean dishes. Eating olives or using olive oil can protect against health problems. Studies have shown that olives can help prevent osteoporosis, a condition where bones become brittle or weak. Other benefits include improving heart health, reducing cancer risk, preventing cognitive diseases like Alzheimer's, regulating blood sugar to prevent diabetes, and reducing chronic inflammation. However, olives are high in fat and sodium, so consuming fresh olives is a healthier choice if you're watching your sodium intake.