No, being overweight and obese could cause Type 2 diabetes, but once you are afflicted with the disorder you would only lose weight. This is because fluid loss and high glucose levels can only cause weight loss. In addition insulin, the body hormone controls the storage of fats and proteins, with insulin deficiency making it impossible to effectively store and use proteins, fats and carbohydrates. So appetite may increase for essential nutrients, but weight decreases.
In addition, dehydration occurring due to increase of blood and urine sugar level, accompanied by increased thirst and weight loss. In addition ketoacidosis occurs when the fatty acids and amino-acids are not being broken up due to deficiency of insulin and leads to weight loss.
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