Pineapples have a rough, waxy, hexagonal-patterned rind that is covered in small, soft spikes and topped with a compact grouping of narrow, green, pointed-tipped leaves that extend upright. The rind can range in color from green to yellow or orange when ripe. The flesh varies in shades of white or yellow. The loosely fibrous and juicy flesh offers a sweet flavor with mild acidity, while the edible core is firmer, more leathery, and less sweet. Pineapple is a good source of dietary fiber and vitamin C, as well as some iron and calcium. The pineapple’s core contains high levels of an enzyme called bromelain, which is said to be an effective anti-inflammatory, muscle relaxant, and digestive aid. Bromelain even has chemicals that have been shown to interfere with the growth of tumor cells.