One serving (one cup) of fresh pineapple contains about 80 calories. They are an excellent source of Vitamin C, manganese, copper, Vitamin B6 and B1, as well as folate and fiber. Eat pineapples fresh, or enjoy the fruit or its juice in your favorite recipes. There are so many ways to use pineapple, such as in fruit kebobs, to dress up cheese plates, grilled to accent pork tenderloin, or frozen to drop into sangria or blend into smoothies. Pineapple juice is delicious and makes a great marinade and meat tenderizer as well. For a quick and delicious dessert, drizzle maple syrup on pineapple slices, broil until brown, and serve with yogurt.