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A Proven Tool For Losing Weight: Reading Food Labels

September 15, 2010

Washington State University analysis finds mid-aged Americans who want to lose weight are more likely to improve their chances after checking nutritional information

Diet and exercise have long been the top two elements of effective weight loss. Now add a third: reading the labels on packaged foods.

Washington State University Economist Bidisha Mandal has found that middle-aged Americans who want to lose weight and who take up the label-reading habit are more likely to lose weight than those who don’t. In some cases, label reading is even more effective than exercise.

“I’m finding that reading labels is useful,” said Mandal, an assistant professor in the WSU School of Economic Sciences. “People who are trying to lose weight want to know what they’re buying and preparing and many do better if they use labels to find what they need to know.”

Writing in the latest Journal of Consumer Affairs, Mandal analyzes the responses of more than 3,700 people who regularly took a national survey asking about their label-reading habits while attempting to lose or control their weight. Among her findings:

    * If you want to lose weight, you have a better chance of success if you read a food label when you first buy a product.
    * People are more successful at losing weight when they add label reading to their exercise program.
    * Label readers who do not exercise have a slightly greater chance of losing weight than those who exercise but do not read labels.
    * Women are more likely to read food labels when they buy a product for the first time, possibly because they are responsible for buying food and cooking. They are also more successful than men in losing weight.
    * In a case of good news and bad news, Mandal found that overweight and obese label readers are more likely to lose weight. But only a little more than one-third lost weight, while nearly half gained weight. This confirms what many middle-aged people know””losing weight is hard and often unsuccessful. But Mandal found overweight and obese people at least have a better chance if they read the label.

The analysis underscores the value of the U.S. Nutrition Labeling and Education Act, which has required standardized nutrition facts on packaged foods since 1994, Mandal said. She adds that the findings build the case for posting nutritional information on vending machines and in many restaurants, as planned under the new federal health care reform bill.

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