Insulin

Insulin is a hormone produced by your pancreas that acts like a messenger, telling your cells to absorb sugar from your bloodstream and use it for energy or store it for later. When you eat food, especially carbohydrates, your blood sugar rises, triggering your pancreas to release insulin to bring those levels back down and keep your body in balance. Without insulin working properly, sugar builds up in your blood, which is why people with diabetes need to carefully manage their insulin levels through medication or lifestyle changes.