Step 1 Drink At least 100 oz of water per day - This will help make you feel fuller through out the day and help reduce the feeling of hunger. A lot of time we mistake hunger for thirst, so drinking water may squash the need to eat something. It also helps with your metabolism, your body needs water to perform many of the processes to function correctly. Your body will also hold on to water more if it is dehydrated making you feel bloated and weigh more.
Step 2 Eating Monounsaturated fats - Over the years fat has been demonized. We need fat to build cells and perform certain processes. Studies have shown that eating monounsaturated fats reduced the accumulation of belly fat. This does not mean a free for all, eating a serving of almonds, a natural nut butter, avocado, olives with your meals.
Step 3 Get moving - Doing a cardio workout at least 3 times a week for 45 minutes. you can do all the AB work and still not have flat abs because you still have a layer of fat over them.
Step 4 Do a Plank 6 days a week - Try working up to holding a plank 60 seconds 6 days a week.
Step 5 Eliminate carbonated drinks - The carbonation causes belly bloating, making you look bigger then you are. So getting rid of sodas will help make your abs look flatter.