If you want to get abs fast you need to stop wasting your time with crunches. Start doing effective ab exercises.

Also you should eat right. Eating the right foods is a bigger factor than exercising. Although you could get away with eating a lot of junk food and doing a lot of intense exercising.

But not a lot of people have that much time. So get good abs by eating natural foods full of fiber, healthy fats, and protein.

Some great choices would be lean meats, fruits, nuts, beans, and vegetables. Eat 5-6 small meals a day and space them out so you eat about every 3 hours.