1 Unit (700 gm - 900 gm) \nPineapples are packed with a variety of vitamins and minerals. They are especially rich in vitamin C and manganese. Pineapples are a good source of antioxidants, which may reduce the risk of chronic diseases such as heart disease, diabetes, and certain cancers. Many of the antioxidants in pineapple are bound, so they may have longer-lasting effects.