Pineapple (Ananas comosus) is an tasty and healthy fruit. Pineapple is low in calories but has an impressive nutritional. Pineapple also contains vitamins A and K, phosphorus, zinc, and calcium. Pineapple is a good source of antioxidants that can reduce the risk of chronic diseases such as heart disease, diabetes, and some cancers. Pineapple contains bromelain, a group of digestive enzymes that break down proteins.Pineapple has anti-inflammatory properties that help boost the immune system.