Drinking 17 oz of water before meals increased weight loss by 2.7 lbs

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Wednesday, October 19, 2016 12:16 pm Email this article

People drinking 17 ounces (500 ml) of water thirty minutes before meals lost 2.7 pounds more after three months than those who did not drink the water according to a recent study conducted in Birmingham, England.

This was after adjusting for ethnicity, age and gender.

The group drinking water lost an average of 5.3 lbs versus 2.6 lbs in the control group.

(Some people did not preload with water three times a day as instructed, but instead only preloaded with water only once or twice a day.)

Those who were most compliant lost an average of 9.5 lbs

Those who preloaded with water three (3) times a day lost an average of 9.5 lbs compared to only 1.8 lbs for those who preloaded with water only once a day or none at all.

Control group

The control group was told to imagine that there stomach was full before meals.

Conclusion

“There is preliminary evidence that water preloading before main meals leads to a moderate weight loss at follow up,” the authors of the study concluded.

Reference

Parretti HM, Aveyard P, Blannin A, Clifford SJ, Coleman SJ, Roalfe A, and Daley AJ. Efficacy of water preloading before main meals as a strategy for weight loss in primary care patients with obesity: RCT. Obesity (Silver Spring), 2015 Sep; 23(9): 1785-1791.

Author’s Contact Info

Helen Parretti
2 Nuffield
Department of Primary Care Health Sciences,
Radcliffe Observatory Quarter,
University of Oxford, UK
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