Drink more water

Blood sugar levels might rise if you don't drink enough water. Your body produces a hormone called vasopressin when you are dehydrated. This causes your kidneys to retain fluid and prevents your body from eliminating sugar in your urine. Furthermore, it causes your liver to release more sugar into your blood. Those who drank at least 34 ounces (approximately 1 liter) of water per day were 21% less likely to develop high blood sugar than those who drank 16 ounces (473 ml) or less per day, according to a study of 3,615 people. An increase in vasopressin in the blood was connected to an increase in insulin resistance and type 2 diabetes in a long-term study of 4,742 people in Sweden.

The amount of water you should drink is frequently disputed. It mostly depends on the individual. Always drink as soon as you feel thirsty, and increase your water intake in hot weather or when exercising. Stick to water instead of sugary juices or sodas, as the sugar can cause blood sugar to spike.