Water is, according to Diabetes specialists, important for everybody, but especially for Diabetes patients, because even a small decrease of the hydration level could cause serious health problems for Diabetics. One of the best warning signs that glucose levels are high is thirst. And, water is the best way to quench that thirst, and to break down those sugars. Also, in order to keep the body functioning normally, water should be a constant. But, water can be lost through exercise and normal exposure to high temps. With that, being hydrated will help prevent fatigue and help physical performance.
Me personally, I do very well with getting plenty of water into my system every day. I have a favorite water jug that you will almost always find at my side. The “rule” I follow is to drink at least half of your body weight in ounces. For me that is 58 ounces a day, and I surpass that. I typically drink 4 or 5 containers worth of water, and my container is 24 ounces.