Fasting Duration: Beginner's Luck
Saturday, April 07, 2018
As I began my 9th-weekend fasting, I also like to figure out the ideal duration for fastings.
1) Metabolism slows down after 72 hours of fasting. 2) Autophagy rises rapidly at 36-72-120 hours then levels off (There are different types of autophagy and this is a new field. No definitive answer yet). 3) Gary Wenk said that 30% caloric reduction prolongs life.
My contention is that the CR should be done through fasting, not by eating every day on 30% less calorie. The body will just lower metabolism if you try that. Not eating for 2 days as the case with what I'm doing, I'm achieving a 30% less caloric diet without the downside of slower metabolism. 2 fasting days, divided by 7 = 28%, Bingo!
At this point, I dropped the ideas of fasting longer than a few days at most as longer fast has diminishing returns. I'm going for the number of cycles and consistent behavior. IOW, I can do the weekend fasting (60-hour) for the foreseeable future. At the end of the year, I hope to have over 40 cycles of fasting.
"My take-away from this is that while there is certainly value in fasting longer, there also seems to be an element of diminishing returns once a fast passes the 36 hour mark. As such, I’ve designed my fasting protocol to get close to the 36 hour mark with as little stress and discomfort as possible."
Number of fasting cycles promotes stem cells regeneration
Gary Wenk at TedTalks: