There comes a time when we grow a big tummy although we go to the gym regularly and workout often. This happens when you take a break from your workout routine and cheat yourself with some mouthful of junk food like pizza, burger, or chocolate-filled dessert. That is when a simple 30 day ab workout plan can help you fix all the damage that your break from the gym has caused to your ab building session. In this 30 day challenge, you will do a series of workouts on a daily basis. These exercises are meant to work on your abs. Let’s go through all the exercises you have to…