Watching your weight? Avoid overeating by counting calories while eating out, says study

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First Published 21, Sep 2018, 1:32 PM IST
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Highlights

A new research makes a strong case for watching what you eat

If you are guilty of helping yourself to a second helping of halwa or ordering an extra butter naan, ruining your diet plan, here's help. Making a strong case for restaurants to list calories on their menus, a new study by Cornell University found that diners with menus listed calories helped their clients order healthier.

According to researchers, diners ordered meals with 3 per cent fewer calories (about 45 calories less) than those who had menus without calorie information. Customers ordered fewer calories in their appetizer and entree courses, but their dessert and drink orders remained the same.

"Even if you're an educated person who eats out a lot and is aware of nutrition, there can still be surprising things in these calorie counts," said co-author John Cawley, professor of policy analysis and management in the College of Human Ecology.

Even the chefs at the restaurants in the study were startled by the high number of calories in some dishes, such as a tomato soup/grilled cheese sandwich combo. "They would have said it was one of the lower-calorie items on the menu," said co-author Alex Susskind, associate professor of operations, technology and information management at the School of Hotel Administration.

The findings come at a time when most people don't have a precise estimate of how many calories they're eating because one-third of their food is prepared outside the home. 

The researchers conducted a randomized field experiment in two full-service restaurants. Each party of diners was randomly assigned to either a control group, which received the usual menus or a treatment group, which got the same menus but with calorie counts next to each item. At the end of the meal, each diner was asked to complete a survey that collected sociodemographic information and attitudes toward diet and exercise. In all, the researchers gathered data from 5,550 diners.

The study also found that diners valued the calorie information. Majorities of both the treatment and control groups supported having calorie labels on menus, and exposure to the calorie counts increased support by nearly 10 per cent. "It's clear that people value this information," Cawley said. 

And there was no downside for restaurants. Their revenue, profit and labour costs were unchanged.

"It's a cheap policy to put in place, and the fact that there is a reduction in calories ordered makes it appealing," Cawley said.

 

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