Nutrition labels on sodas and juices have been giving consumers a false sense of how many calories they were drinking since the number only represented that of a single 8-ounce serving size.
New labels will reflect the total number of calories in a bottle or can of 20 ounces or less.
"Unbeknownst to those who are happily guzzling their favorite cola or fruit drink, most packaged beverages contain multiple servings, and most Americans fail to do the math on the total calorie count," said Jessica Bartfield, M.D., medical weight loss specialist at Gottlieb Memorial Hospital.
Bartfield said the previous labeling system was somewhat deceptive and that it hid the actual calorie content in beverages.
Authors of the study noted that the average United States resident consumes an estimated 22.5 teaspoons of refined sugar each day, and that about half of that comes from sugary beverages. Also, 10 percent of overweight adults drink an excess of 450 calories per day in soda and juice.
High sugar consumption has been shown to lead to various health problems such as obesity and diabetes.