Does drinking water before meals help with weight loss?
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3 Answers
Modestly, yes — trials show a small reduction in intake and slightly greater weight loss, likely from fullness and from displacing calorie-containing drinks. It's a helpful nudge, not a strategy on its own.
Trials show a modest effect — a few hundred grams to a couple of kilos more loss over 12 weeks, mainly in middle-aged and older adults.
The larger benefit is displacement: replacing sweetened drinks with water removes several hundred calories a day with no effort on portion control.
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