does fasting while doing HIIT help with fat loss

Fasting while doing high-intensity interval training (HIIT) can help with fat loss. According to Andrew Huberman, if you perform exercise in a fasted state, you can burn more body fat per unit of time compared to exercising after eating. High-intensity exercise for 20 to 60 minutes, especially when initiated in a fasted state, increases the percentage of fat burned. It's crucial, however, to ensure you are medically and physically able to undertake this regimen safely 1.

Additionally, the effectiveness of training fasted isn't only about exercise duration but primarily about its intensity and the body's resulting energy demands. High-intensity exercise rapidly depletes glycogen stores, driving the body to burn more fat 2. Engaging in HIIT, where activities are performed at a high intensity, can lead to significant fat oxidation, especially if done in a fasted state 3.

However, it's important to note that this approach is not just about fat loss—it involves understanding how the body's hormone balances and energy needs operate. The fasting state helps keep insulin levels low, promoting fat oxidation 1. Engaging in this practice safely and effectively requires balancing nutritional intake and understanding your body's responses to various intensities of exercise 4.