Olives are very high in vitamin E and other powerful antioxidants. Studies show that they are good for the heart and may protect against osteoporosis and cancer. The healthy fats in olives are extracted to produce olive oil, one of the key components of the incredibly healthy Mediterranean diet.
Cracked olives are olives that have been 'cracked' or split open before curing ~ the process allows the brine to penetrate quicker. Look for them in your supermarket's olive bar, or substitute any green olive that you love.