Water Intake Linked to Blood Sugar Level

People who drink less than a couple of glasses of water per day are more likely to develop abnormally high blood sugar, a study suggests. When someone's blood sugar levels are high, but not high enough to fit the definition of diabetes, doctors often consider that person to have "pre-diabetes," meaning that they are at risk of developing the disease. In the study, adults who drank only half a liter - about 2 glasses - or less each day were more likely to develop blood sugar levels in the pre-diabetes range, versus people who drank more water. The findings shoe a correlation between water in-take and blood sugar, but do not prove cause and effect, said senior researcher Lise Bankir of the French national research institute INSERM. Still, it is plausible based on biology, Bankir said. Vasopressin, also known as the antidiuretic hormone, helps regulate the body's water retention. When we are dehydrated, vasopressin levels go up, causing the kidneys to conserve water. There are vasopressin receptors in the liver, the organ responsible for producing glucose (sugar) in the body, Bankir explained. One study found that injecting healthy people with vasopressin caused a temporary spike in blood sugar.