Thank you very much for this website and the opportunity to post a question on it to someone, seemingly, well informed 🙂 You can find more details in Diet Doctor’s guide on fasting. The answer is different if you are at your ideal weight or severely diabetic and 100 pounds overweight. I just saw somebody who did a 61-day fast, and the very next person said she couldn’t do 12 hours. It depends upon the specific reason you are fasting, how your body responds to it (some people do better than others), and how easy it is for you. That’s a great question, but one with no easy answer. My question is on what frequency are three-day and seven-day fasts acceptable? For example, one 7-day fast per month and three 3-day fasts per month, 24-hour fasts the remainder? If you’re in general good health, a of couple weeks into the keto diet, 40 pounds (18 kilos) overweight having lost 20 pounds (9 kilos) already? I’ve also found the “mixing up” the duration of fasts is good so that the body doesn’t adapt. I’ve found through various of your articles and videos that the 24-hour fast can be performed daily (Warrior Diet). It’s time for this week’s Q&A about intermittent fasting and low carb with Dr. What is the optimal fast frequency? Can you fast with low blood pressure? And, can a low metabolic rate be reversed?

The Diabetes Code by Jason Fung