Every time you eat, the pancreas releases insulin into the bloodstream. The work of insulin is to convert blood sugar (glucose) into energy. Without insulin, glucose will build up in your blood stream, causing hyperglycemia. This is what happens to Type 1 diabetic patients.
In Type 1 diabetes, autoimmune conditions damage beta cells of the pancreas that produces insulin. Consequently, the pancreas fails to produce adequate insulin, leading to high glucose levels in the blood, which disrupts the body’s metabolism, causing symptoms like frequent urination, increased thirst, chronic fatigue and weight loss.