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Original title: Does the fast food menu indicate that calories are effective for weight loss? Study: Only short-term effects
According to the Central News Agency, a new study published in the British Medical Journal on the 30th local time showed that the U.S. fast food restaurant menu to indicate calories, can only help customers achieve a short-term small reduction in average calorie intake effect.
the researchers studied 104 retail outlets of fast-food chains with three restaurant chains in Louisiana, Texas and Mississippi and collected nearly 50 million orders from April 2015 to 2018.
reported that the fast-food restaurants included calories on their menus during the 2018 study. After a few months of calories, customers ordered an average of 60 fewer calories. It's worth noting that the 40 calories come from desserts and other meals.
, however, after a year, the average snack reduces calories by only 23 calories compared to the previous calorie label, with a significant discount.
this trend, according to the study, "may be due to customers reacting at first to new approaches that indicate heat, but gradually stopping paying attention to calorie information over time."
two other possibilities are that customers decide to order the same number of calories, but healthier meals, or that the restaurant starts adjusting its recipes to offer low-calorie meals.
author Petima said the study did not examine neither of these possibilities.
, professor of public health nutrition at the University of Tisside, said, "For us, it shows that just noting calories alone doesn't solve the problem." The factors contributing to obesity are complex and must therefore be multi-pronged. Researchers
that reducing calorie intake, while small, is enough to help adults lose about half a kilogram after three years.
, of Oxford University's Centre for Population Prevention of Noncommunicable Diseases, said: "While this finding is disappointing for some people, small changes in calorie intake can have real effects at the demographic level. "
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