Pineapples are abundant in vitamin C and bromelain, which fight against microbial infections. Eating pineapples with the prescribed medicines can help cure cold and cough effectively. Pineapple fruit contains a proteolytic enzyme bromelain that digests food by breaking down protein. Bromelain also has antiinflammatory, anticlotting and anticancer properties. Studies have shown that consumption of pineapple regularly helps fight against arthritis, indigestion and worm infestation.