They are a good source of many nutrients, such as vitamin C, manganese, copper and folate and are also the only source of the plant compound bromelain.
According to studies, Bromelain is associated with many health benefits, such as enhanced immune function, cancer prevention, improved wound healing and better gut health.
Studies have also shown that type 1 diabetics who consume high-fiber diets have lower blood glucose levels and type 2 diabetics may have improved blood sugar, lipids and insulin levels. One medium pineapple provides about 13 grams of fiber.
Antioxidant-rich diets have been shown to improve fertility. Because free radicals also can damage the reproductive system, foods with high antioxidant activity like pineapples that battle free radicals are recommended for those trying to conceive. The antioxidants in pineapple such as vitamins C, beta-carotene and the vitamins and minerals and copper, zinc and folate have properties that affect both male and female fertility
Pineapples are delicious when consumed fresh, but they can also be enjoyed as juice, dried, canned, or as an ingredient in various recipes.