Drinking a large glass of water before each meal for two months is linked to a small but measurable drop in body fat measurements at the arm, belly, and thigh in overweight young women.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

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Effect of 'water induced thermogenesis' on body weight, body mass index and body composition of overweight subjects.

Cohort Study

Human

2013 Sep

This study gave overweight young women 500 ml of water before each meal for eight weeks, and their skinfold measurements (a way to estimate body fat) went down by about 3 mm — just like the claim said.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Effect of 'water induced thermogenesis' on body weight, body mass index and body composition of overweight subjects.

Score: 32

DOI: 10.7860/JCDR/2013/5862.3344

Similar Assertions

When young women who are overweight drink an extra six glasses of water a day before meals for two months, they tend to lose a little weight, their BMI goes down a bit, and their body fat measurements slightly improve.

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86%

Overweight young women who drink more water for two months tend to have a slightly lower BMI, even if they didn’t change what they ate.

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77%