What is the primary use of intramuscular fat in the body?

The primary use of intramuscular fat in the body is as an energy source during exercise. Intramuscular fat stores are located within the muscle tissues and serve as a readily accessible reservoir of energy. During physical activity, particularly endurance-based exercise, the body utilizes these fat stores to meet energy demands when glycogen stores deplete.

Intramuscular fat can provide a sustained energy release, which is especially valuable during prolonged efforts, allowing muscles to perform efficiently without relying solely on glucose. This process becomes increasingly important in endurance sports or activities where prolonged energy output is required.

Utilizing fat for energy also plays a critical role in metabolic health, as it contributes to maintaining energy balance in the body and can enhance performance over time by optimizing fuel utilization.