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In this study, researchers explored the results of 11 studies looking at the link between drinking water and body weight in adults over 18:
Based on their review of limited evidence, the study authors conclude that “Studies of individuals dieting for weight loss or maintenance suggest a weight-reducing effect of increased water consumption.” They add that while the evidence for drinking water and overweight prevention in school children seems promising, similar evidence for adults has been greatly lacking, and further research is needed.
The link between drinking water and weight. Drinking more water is a common weight-loss strategy that many people believe in. But what’s the reasoning behind it? It may be that people who choose water over other types of beverages such as sugary drinks may be sparing calories and avoiding weight gain. Or, perhaps drinking a lot of water may help a person feel full and less hungry, which makes them eat less. The study authors point out that drinking other noncaloric beverages that contain water such as tea or coffee may also have a beneficial effect, adding that “whether water consumed in other forms has a similar effect requires studies that consider all sources of fluid intake by non-caloric beverages.
Finding the balance is important. Losing or maintaining a healthy weight requires action in several lifestyle behaviors, including eating a healthy diet, getting regular exercise, and avoiding sedentary activities such as watching the television or sitting at the computer for too many hours.
Talk with a doctor. If you are overweight or wanting to maintain a healthy weight, talk with a doctor or healthcare professional about options for optimizing your weight and, ultimately, your health.
(Am J Clin Nutr doi: 10.3945/ajcn.112.055061)