Pineapples are one of the most popular tropical fruits in the world.Fresh pineapple is low in calories. Nonetheless, it is a storehouse for several unique health promoting compounds, minerals and vitamins that are essential for optimum health. Fresh pineapples contain 50 calories per 100 grams, which amounts to only 83 calories per cup (165 grams). They consist of water (86%) and carbs (13%), with almost no protein or fat.The oval to cylindrical-shaped, compound fruit develops from many small fruits fused together. It is both juicy and fleshy with the stem serving as the fibrous core. The tough, waxy rind may be dark green, yellow, orange-yellow or reddish when the fruit is ripe. The flesh ranges from nearly white to yellow. In size the fruits are up to 12 inches long and weight 1 to 10 pounds or more. Pineapples are delicious when consumed fresh, but they can also be enjoyed as juice, dried, canned, or as an ingredient in various recipes.