Under the measure, people will not be able to buy sugar-sweetened drinks larger than 16 ounces at fast-food restaurants, convenience stores, movie theaters and food carts.
“[Six] months from today, our city will be an even healthier place,” Bloomberg tweeted.
However, experts say it remains to be seen whether the city will actually be healthier. Critics have pointed out that people could just buy two 16-ounce drinks rather than a 32-ounce drink.
One recent study attempting to look at what effect the law might have showed that the new measure could reduce New Yorker’s average calorie consumption, but only if at least 40 percent of people make changes in their drink consumption.
The researchers, who analyzed the receipts of about 1,600 fast-food restaurant customers in East Coast cities, found that if all consumers who had been buying larger sizes switched to a single 16-ounce drink (and none bought two 16-ounce beverages), the average calorie intake would drop by 63 calories per meal.
However, if only 30 percent of consumers switched, no decrease in the average calories consumed per meal would occur, the researchers said. The magic number needed to see any effect was 40 percent — if that percentage of consumers switched to a single 16-ounce beverage, then overall calorie consumption would decrease by close to 10 calories, according to the study, which was published in July in the New England Journal of Medicine.
Bloomberg also tweeted, “Portion size drives consumption.” Here, studies do support the mayor’s point.
For instance, Simone French, associate director of the University of Minnesota Obesity Prevention Center, told MyHealthNewsDaily in an interview in May that when people are presented with large portions, they tend not to consume “just enough” to meet their bodies’ needs, and instead eat the entire portion as a single serving. Since the Coca-Cola Co. began selling its products, the bottles that are often consumed as a single serving have grown from 6.5 ounces to 20 ounces, she said.
“We need to have a cultural shift back to more modest, reasonable, appropriate portion sizes if we want to help reduce the obesity epidemic,” French said.
Mr. Divabetic talks to New Yorkers about the Super Size Soda Ban in Central Park
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