On a 72-hour fast, you can potentially lose about two pounds of fat [1]. However, it's important to note that weight loss during a fast can vary depending on factors such as body size, activity level, and individual metabolism.

During a 72-hour fast, your body enters a state of ketosis, where it starts using stored fat as its primary source of energy. This can lead to fat loss and a reduction in overall weight. However, it's crucial to approach fasting with caution and under the guidance of a healthcare professional.

It's worth mentioning that prolonged fasting can have adverse effects on weight and may cause weight gain due to adaptive thermogenesis [1]. This is why it's generally recommended not to do a full 72-hour water fast more than twice a month to avoid compromising your metabolic rate.

Learn more:

1. What happens to your body if you avoid eating food for 72 ...
2. Here Are The Benefits Of A 72 Hour Fast
3. How Much Weight Will I Lose On A 3 Day Water Fast