Photo gallery: The 5 best antioxidant-rich foods Which foods have the most antioxidants? Find out with this guide to the 5 best antioxidant-rich foods. By Dr. Joey Shulman Slide: 1 of 5 auto-play pause next first speed Berries In addition to being deliciously sweet, berries such as raspberries, blueberries and strawberries offer an abundance of antioxidant capacity. Blueberries, raspberries and blackberries are rich in proanthocyanidins, antioxidants that can help prevent cancer and heart disease. Eat them frozen in a morning smoothie, toss a handful over your morning yogurt or cereal or enjoy them as an afternoon snack. Try our Berry Breakfast Sundaes.