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Americans are suffering from what nutritionists call "portion distortion," or an inability to judge what is and is not a reasonable serving size. Our problem isn't just what we're eating, but how much. The trouble began during the last decade when fast food chains began offering super-sized value meals. The Journal of Public Health Policy reported in 2007 that portion sizes offered by fast food chains are two to five times larger than when first introduced. Food package sizes also increased and it became more difficult for consumers to control their serving sizes. Standard size dinner plates grew in size from 10 to 12 inches, and cups and bowls became larger as well. Combined, these problems have contributed to an obesity epidemic.
The good news is that you don't have to be a rocket scientist to understand proper portion sizes. Lisa Young, PhD, Rd, author of The Portion Teller, recommends what she calls the "handy method." For example, one serving of meat, fish or poultry is about the same size as the palm of your hand, while a cup of rice is about the size of your fist. Another method, relating portion sizes to every day items, works well for many people. Here are some common comparisons to help you.
For more exact measurements, use measuring cups, measuring spoons, or a kitchen scale to measure or weigh the serving size portion listed on food package labels. If you do this consistently, you will soon be able to eyeball correct portion sizes. For more information on serving sizes and a convenient wallet sized card that compares food servings to every day items, visit the National Heart Lung and Blood Institute website.