Sugar, after reaching our stomach, flows into our bloodstream. This makes the body cells release water to restore balance in the blood. As cells lose their water, they send signals to the brain, which, in turn, induces the urge to drink.

What causes thirst other than diabetes?

Causes include overactive parathyroid glands (hyperparathyroidism), another illness (tuberculosis, sarcoidosis), and even cancer (lung, breast, kidney, multiple myeloma). Besides thirst, symptoms of hypercalcemia may include: More frequent urination.

Why am I so thirsty even after drinking water?

Water straight from the tap has been stripped of its naturally occurring minerals and electrolytes. This imbalance in electrolytes can be a reason you are still feeling thirsty after drinking water. Staying properly hydrated is more than just drinking water. You should also be considering what's in your water.