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2. Weight Loss
Gaining too much weight can put you at risk for diabetes, but losing a lot of weight quickly could mean you’ve developed diabetes. Sudden and extreme weight loss (10 to 20 pounds in the course of a few months) happens when your insulin fails to get the glucose from your blood into your cells, and your cells go into starvation mode.
Without the glucose they need to function properly, they begin to drain protein from the muscles to use for fuel, causing you to lose weight. Since your kidneys are also working faster to get rid of the glucose, your body will lose water weight and expend more energy, which leads to a calorie deficit.