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Editorial |

Calories Count:  But Can Consumers Count on Them?

Linda Van Horn, PhD, RD
JAMA. 2011;306(3):315-316. doi:10.1001/jama.2011.1022.
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Excess energy intake contributes to weight gain. Although energy output can help balance energy intake for weight control over time, weight loss for most sedentary people can be achieved only by reducing energy intake.1,2 Despite long-held assumptions that diet composition might influence the rate and overall capacity for weight loss, randomized controlled trials have recently documented that regardless of shifts in total protein, carbohydrate, or fat intake, the bottom line in achieving successful weight loss is adherence to a diet that is reduced in total energy intake.3,4

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