Having a perfectly flat stomach is every person?s fantasy these days. Whether it is our favorite footballer like Ronaldo, or our own Bollywood hunk, Hrithik Roshan, everyone is sporting washboard flat abs. Actresses like Katrina Kaif, Kareena, Shilpa Shetty show off their perfectly-toned midriffs and make heads turn with envy. With a lot of informa...
