Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels. It allows cells in the body to take in glucose, which is a primary source of energy. When we eat, our blood sugar levels rise, prompting the pancreas to release insulin to maintain balance. In people with diabetes, the body either does not produce enough insulin or cannot use it effectively. This can lead to high blood sugar levels, which can cause various health issues over time. Managing insulin levels is crucial for maintaining overall health and preventing complications associated with diabetes.