The habit of regularly drinking water seems so commonplace that its impact on the body is often underestimated. However, doctors emphasize that proper hydration is vital not only for well-being, but also for the stability of key biochemical processes in the body. In particular, studies cited by VeryWell Health show that drinking more than one liter of pure water per day can reduce the risk of a drop in glucose levels and prevent its sharp fluctuations.
How water affects glucose levels
About 80% of blood is water. When the body loses fluid, the volume of blood flow decreases, and the concentration of glucose, on the contrary, increases. At the same time, the actual amount of sugar does not change - it simply becomes more concentrated.
Regular water consumption maintains a stable plasma volume, helping the body naturally keep sugar levels within normal limits. At the same time, it is important to understand: water does not replace insulin and cannot perform its function.
The role of the kidneys in glucose regulation
The kidneys are one of the main organs responsible for purifying the blood. When glucose levels are high, they excrete excess glucose in the urine. To do this, the body needs a sufficient supply of fluid.
If there is not enough water, the kidneys work with overload, which can cause glucose spikes. In the opposite case - under normal hydration conditions - they cope with the regulation more effectively.
Dehydration activates the hormones cortisol and vasopressin. Both of these stimulate the liver to release extra sugar into the bloodstream, increasing the risk of hyperglycemia.
Adequate water intake helps keep stress hormones in balance, reducing their impact on glucose levels.
The cycle of dehydration and high sugar
Elevated glucose levels cause frequent urination as the body tries to get rid of the excess sugar. This leads to additional fluid loss and subsequent dehydration, which in turn further increases glucose levels.
Regular water consumption helps break this vicious cycle.
Well-hydrated cells respond better to insulin, the hormone that helps them “take up” glucose. When there is enough water, insulin sensitivity increases, which helps to naturally stabilize blood sugar.
Water and weight control
Overweight and obesity are key risk factors for insulin resistance. Water helps control appetite and reduce calorie intake.
Regular hydration is a simple but effective tool for maintaining a healthy weight, which in turn directly affects glucose levels.
