Health Advantage of Alternate Day Fasting

How often do you need to do this sort of longer fast?

So when we look at the animal research for alternate day fasting, that's really where we see the best longevity effects and lifespan extension effects of fasting as a lifestyle, as an intervention. So that's going to look like, you know, one day of normal eating followed by one day of fasting, which is just going to be, you know, water or non caloric beverages, something like that. Then another day of normal eating, another day of fasting, and then you just rinse and repeat for an organism's entire life. And when we do that, we can see around a 30 to 50% lifespan extension even without altering the amount of calories that we're consuming. So those are kind of these really interesting unique effects of fasting itself that make it a little bit different from the lifespan extension that you can get from caloric restriction and energy restriction. So that's really where we see the best lifespan extension is in that alternate day fasting regimen which equates to around a 36 hour fast repeated over and over.