Are you ready to face the challenge?

It's quite easy, actually. Just look at the pairs of "food comparisons" in the pictures below and guess which food in each pair is lower in calories.

The calories are based on the amount of food you see in the photographs.

(click the images to get the answers)

Just from this short quiz, you'll get a better idea about which choices you're making the next time you see these foods. Even if you get 100 percent correct on the quiz, the images will remind you of things that you already know about these foods. You'll discover even more, and expand your choices, as you continue reading this book.

1. assorted olives or fat-free pretzel
2. low-fat granola bar or dried peach halves
3. peanuts or graham crackers
4. Grape-Nuts or Frosted Flakes
5. smoked salmon on pumpernickel or roast beef on country white
6. M & M's or yogurt raisins
7. English muffin with jam or dry bagel
8. turkey on rye or peanut butter and jam on whole wheat bread