Health Benefits Of Pineapple And Its Juice. Pineapple contains bromelain which is an enzyme. This enzyme is needed to get better digestion capabilities. Bromelain is a meat tendrizer. It helps in digesting proteins and makes it available in readily digestive forms. It is also a potent antioxidant and anti- inflammatory substance which even helps in preventing cancer. Pineapple has high level of vitamin C and acts against acne.