How To Make a Pineapple Skin Drink! Why Should You Not Throw Away Pineapple Peels! From the pineapple peel, delicious drinks can be prepared that preserve all the medicinal properties of the fruit. Pineapple peels are extremely effective in retention of water, bloating and cellulite, because it is rich in potassium and supports the formation of red blood cells that help to transport oxygen to the body. Bromelain, present in the rind, is the enzyme responsible for improving digestion and treats inflammation.