We live in an age where rock-hard, six-pack abdominal muscles are the goal of many workout enthusiasts. We all want that washboard look, but which ab exercises actually work? There are two sets of muscles to target: the rectus abdominis muscles (the ones you engage during regular situps, that run from your sternum to your pelvis) and the transverse abdominis (the deepest ab muscles that wrap around the spine and help stabilize your core).
Eat carbs. "There's this notion that carbs are bad and that you need crazy amounts of protein to be lean and fit," says Alcantara, who disagrees, and eats just as much carbs as protein, although the ideal ratio varies based on your goals. "Whatever you eat to get the results you want has to be sustainable, otherwise you're going to end up right back where you started with the same habits that got you there." 

ripped 6 pack abs