Insulin is a hormone produced by the pancreas that regulates blood sugar levels by helping glucose enter cells for energy. In diabetes mellitus, this system breaks down: either the body doesn’t produce enough insulin, can’t use it effectively, or both, leading to dangerously high blood glucose that damages organs and tissues over time.
Understanding insulin’s role isn’t just about biology. It’s the foundation for every treatment decision, from choosing the right medication to timing your meals. Whether you’re newly diagnosed, caring for someone with diabetes, or simply trying to make sense of …










