Pineapple is rich in vitamins and minerals. It’s also the only major dietary source of bromelain, an enzyme that has been used for centuries to treat a range of ailments. Modern research has studied bromelain’s effects and supports several of pineapple’s potential health benefits. Pineapple juice is also a great source of beta-carotene and vitamin A. These antioxidants promote healthy skin, heal wounds, and may reduce premature skin aging.