What is the potential weight loss achievable on a ketogenic diet?

It is possible to lose 0.5 lbs (0.227 kg) per day while fasting, which amounts to 3.5 lbs (1.58 kg) per week in a best-case scenario. Initially, you might lose 7 to 15 lbs in the first week, mostly water weight from glycogen. Glycogen, stored with 3 to 3.8 grams of water per gram, is quickly used up during fasting, causing significant water loss.

Factors affecting weight loss during fasting include:

- Age

- Activity level

- Gender

- Metabolism

- Overall health

- Diet

- Stress level