Maintaining a balanced diet is tough, but understanding portions and servings sizes can help you figure out the quantity of food you are actually consuming. The ability to judge the amount you are eating is essential to make sensible choices for a balanced diet. Frito-Lay would like to review with you the difference between a serving and a portion, as well as provide visual references for gauging portion sizes.  You may be surprised, serving sizes are not as big as you may think.