According to a report in TIME, researchers don’t think the high obesity rates in the U.S. and people not drinking enough water is purely coincidental.
A study from the Annals of Family Medicine purports to link these two phenomena. Using data from about 9,500 adults enrolled in the National Health and Nutrition Examination survey (NHANES), the researchers found a link between dehydration and overweight. Essentially, the subjects who didn’t drink enough water had higher BMIs than the well-hydrated subjects.