Nothing tastes better than a juicy, ripe pineapple. On its own or blended into a smoothie, this fruit never fails to please the taste buds. Like all fruit, it naturally contains sugar, so moderation is key. Pineapple contains an enzyme called bromelain that helps improve digestion and also acts as an anti-inflammatory. If you'd rather not lug home a heavy pineapple, toss a few bags of frozen pineapple in your grocery basket—these are particularly handy when whipping up a healthy shake.