Antioxidant capacity: 1.7 mmol/3.5 oz
You may think of olives as a healthy, unsaturated fat, but they're a small fruit that is grown on olive trees. It shouldn't come as a surprise that foods that are dark purple or black hues tend to be rich in beneficial antioxidants, including vitamin E, and black olives are a great example. All olives contain antioxidants which is why using extra virgin olive oil is one of the healthiest fats to include in your diet.