What is the primary consequence of a negative energy balance?

A negative energy balance occurs when the number of calories burned exceeds the number of calories consumed. This energy deficit prompts the body to utilize stored energy, primarily in the form of fat, leading to weight loss. The primary consequence of a negative energy balance is indeed weight loss, which isn't an option here but is critical to understand.

While insulin resistance can be associated with various metabolic disorders, it is not a direct primary consequence of achieving a negative energy balance. Instead, a negative energy balance typically enhances the body's ability to utilize insulin efficiently, particularly in the context of fat loss and improved body composition.

In contrast, increased stamina and improved metabolism are often seen as benefits of a negative energy balance due to weight loss and better fitness levels. Therefore, it is essential to recognize that the energy balance primarily leads to changes in body weight and composition rather than insulin resistance.