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February 14, 2012
Substituting Water for Soft Drinks Drops 5 Pounds From Your Weight


Making a simple substitution of water for soft drinks or any drinks with calories can help people lose 5 pounds, a new University of North Carolina at Chapel Hill study shows.


Diet sodas are low in calories, however they cause a variety of health problems and are best avoided entirely.

The study, published online and scheduled to appear in the March 2012 print issue of The American Journal of Clinical Nutrition, compared weight loss for 318 overweight or obese people, who were divided into groups: those who switched from calorie-laden beverages to water; and those who were not counseled to change beverages but received general information about healthy choices that could lead to weight loss. All groups attended monthly group sessions and had access to a group-specific website for 6 months.

“Substituting noncaloric beverages -- whether it’s water...or something else -- can be a clear and simple change for people who want to lose or maintain weight,” said study author Deborah Tate, Ph.D., associate professor of nutrition and of health behavior at the UNC Gillings School of Global Public Health and member of the Lineberger Comprehensive Cancer Center. “If this were done on a large scale, it could significantly reduce the increasing public health problem of obesity.”

Tate and colleagues undertook the study to provide scientific evidence of whether eliminating calories from beverages is an effective weight loss tool that health-care providers and nutritional counselors could recommend. The study, known as CHOICE, or Choosing Healthy Options Consciously Everyday, is believed to be the first randomized controlled trial using noncaloric beverage substitution alone as the primary weight loss strategy in overweight adults.

“It does help,” Tate said. “We learned that...drinking water was associated with some other important health improvements like reduced blood sugar.”

All groups experienced small reductions in weight and waist circumference during the 6-month study.

However, people who switched to calorie-free beverages were twice as likely to lose 5 percent or more of their body weight than those who were not counseled to change beverages. People in the group who drank mostly water had lower fasting glucose levels and better hydration levels than the control group.

Tate said that that percentage of weight loss and lower blood sugar levels were important because they are associated with clinical improvements in risk factors for obesity-related chronic diseases.

The study also noted that while participants’ weight loss was less than reductions observed in more intensive, clinic-based behavioral lifestyle modification programs, the UNC study required minimal self-monitoring and prompted people to change just one aspect of their diets (beverages) -- an approach consistent with other findings recommending small but potentially more sustainable lifestyle changes that people can make to improve their health.

“Substituting specific foods or beverages that provide a substantial portion of daily calories may be a useful strategy for modest weight loss or weight gain prevention,” Tate said. “Beverages may be ideal targets, but keep in mind, the strategy will only work if the person doesn’t make up for the lost calories some other way.”

Source:
American Journal of Clinical Nutrition


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