What are the healthiest high-fat foods to eat ... found that olives are rich in oleic acid, a monounsaturated fat that protects your heart. Olives are also a source of polyphenols, an antioxidant ...

It emphasizes plant foods, including a wide range of vegetables ... These seeds are a notable source of oleic acid, a healthy fat known for its anti-inflammatory effects. Pumpkin seeds also ...

Additionally, oleic acid may support weight management by increasing feelings of fullness after a meal. However, the review looked at all food sources of oleic acid, not just avocado oil.