What impact does insulin resistance have on energy levels?

Insulin resistance significantly reduces overall energy levels. This condition occurs when the body's cells become less responsive to insulin, a hormone crucial for the regulation of glucose metabolism. As a result, glucose, which serves as a primary source of energy, is not efficiently utilized by the cells for energy production.

When insulin resistance is present, the body struggles to transport glucose into the cells, leading to higher blood glucose levels. This inefficiency can result in fatigue, lethargy, and an overall sense of low energy. Moreover, the inability to use glucose effectively can prompt the body to rely more on fat for fuel, which may be less efficient for quick energy needs. Consequently, individuals may experience decreased energy levels throughout the day.

The other options do not accurately reflect the physiological effects of insulin resistance. Rather than boosting energy or having no effect, insulin resistance clearly leads to challenges in energy usage, contributing to overall fatigue and reduced energy levels.