Insulin plays a crucial role in maintaining blood sugar levels by facilitating the uptake of glucose into the body's cells. After meals, insulin is released by the pancreas, allowing cells to use glucose for energy or store it as fat for later use. Proper insulin function is critical for regulating blood sugar levels, preventing spikes that can lead to complications like diabetes. Additionally, maintaining healthy insulin sensitivity through a balanced diet and regular exercise supports metabolic health, ensuring the body efficiently manages blood sugar and overall energy balance.