The U.S. Department of Agriculture (USDA) has determined that Americans are eating approximately 150 more calories per day than they were 20 years ago. Over the course of a year, this can lead to 15 extra pounds. However, diet and nutrition editor of Fitness magazine, Leah McLaughlin, noted that reducing portion sizes can help reduce calories. McLaughlin said, "Lots of people are hung up on not eating fat or protein. But at the end of the day, Americans are just eating too many calories."

McLaughlin suggests that if you must buy food items that are larger than normal, eat only part of the product and save the rest for later. This is also a good practice to use in restaurants. If the serving size is large, ask for a doggy bag right away or split an entrée with a friend. Or, consider ordering an appetizer as your main entrée. McLaughlin added that if you are confused about portion sizes, using your hand can be a good frame of reference. Meat should be about the size of your palm while cereal and side dishes should be the size of your fist. McLaughlin also noted, "If you overeat at one meal, compensate at another. It's all about balance." (CBS, February 28, 2003)