Pineapple is an excellent source of vitamin C and other antioxidants. It helps your body stay strong and helps strengthen your immune system to fight off colds. So, to summarize, eating pineapple can be good for your body both inside and out. Eating a few slices of fresh pineapple a day can defend your body from harmful free radicals and diseases, aid digestion by purifying the body's organs and blood, increase energy intake and stimulate metabolism, nourish your hair, skin, your nails and teeth and keep you generally healthy and tastes good