Energy balance
Drinking water induces thermogenesis and increases energy expenditure, potentially aiding weight loss.
Drinking water, especially cold water, may slightly increase your energy expenditure through thermogenesis. While this effect is small and not a primary weight loss strategy, it is a beneficial physiological response. Focus on drinking water before meals to suppress hunger and reduce overall caloric intake, which is a more significant factor.
A study has revealed that drinking only 500 ml of water increased energy expenditure and blood pressure response over the course of 60 min after ingestion in normal-weight and obese men and women. Thus, drinking 2 l of water per day would augment energy expenditure by approximately 400 kJ.
Why this rating
Supported by specific studies showing increased energy expenditure, but contradicted by other studies questioning the magnitude and net benefit.
Source
Opportunities for Intervention Strategies for Weight Management: Global Actions on Fluid Intake Patterns
Max Lafontan et al. · Obesity Facts · 2015
DOI 10.1159/000375103
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