I am getting tired of people at the gym doing abdominal crunches and then whining why their stomach did not get smaller.
Here is a little factoid that you should know.
Spot reduction does not occur.
So stop doing crunches because it is going to build your six pack in any way or form.
Stop it right this moment.
I will give you five easy steps to follow so you can start building a six pack

1. Nutrition - stop eating low nutrients high calorie food like cake and sodas.
   Start eating whole and naturally.
   A whole lot of vegetables and fruits.
   Complex carbohydrates such as oatmeal, whole wheat bread and pastas.
   High quality protein such as chicken and tuna.
   Good fats coming from salmon, avocado and olive oil.
   
2. Workout routine - focus on compound movements and core workouts.
   Some exercises you should include in your routine are squats, dead lifts, presses, plank, hanging leg raise.
   Do not do isolation because it does not burn as much fat as compound exercises
3. Consistency - You must be consistent with your nutrition and workout program.
   This is very important when building a six pack.
   Do not discourage if you do not see significant result within 1 week.
   Keep your diet strict and workout routine intense and you will be gratified with phenomenal results.
   
4. Body fat percentage - When it comes to your six pack it is all about your body percentage.
   Make sure you keep track of your body fat percentage every other week.
   Adjust your workout and your nutrition according to your body fat
5. Rest - It is imperative that you do not over train.
   Give your body the rest it needs in order for the muscle to fully heal.
   It is recommended that you take at least 1 day out of the week for complete rest.