The main role of the pancreas in the human body involves producing digestive enzymes and regulating blood sugar levels. As part of the endocrine system, it secretes hormones such as insulin and glucagon to maintain glucose homeostasis. Insulin decreases blood sugar levels by facilitating the uptake of glucose into cells, while glucagon increases blood sugar levels when needed. Additionally, the pancreas plays a key role in digesting food by releasing digestive enzymes into the small intestine, which help break down proteins, fats, and carbohydrates, making it essential for digestion and metabolism.