One and a half ounces of food = six dice. This would include foods like natural cheeses.

One ounce of food = one die. Use this to measure some of your solid fats, such as margarine or spreads.

One tablespoon = your thumb tip. This will cover your liquid fats, like oils and mayonnaise.

But just knowing what a serving size looks like isn't always enough. Researchers have shown that simply buying a larger size quantity than what you need in something like a bag of potato chips can mean you eat more than the designated serving in one sitting.

So here are some tips to avoid portion distortion pitfalls.

Whenever you go to a fast food restaurant, avoid the temptation to pay a few cents more for the super size quantities. As stated above, you can save even more money by "down" sizing your meal.