There is a recent US Military study that shows that under a severe caloric deficit and with increased energy expenditure that yes, you still preserve lean body

There is a recent US Military study that shows that under a severe caloric deficit and with increased energy expenditure that yes, you still preserve lean body mass. [0] Granted this was not fasting, but it's interesting nonetheless. Don't be thrown off by the title. Yes, one group received testosterone, but even the placebo group that did not receive anabolic steroids, lost nearly 10 pounds of fat without losing any appreciable amount of lean body mass. Dr. Peter Attia wrote about it in his newsletter this past week. [1] Between my anecdotal experience of not feeling like I lose much lean body mass while fasting, this study above, and recent evidence from studies shown that "muscle memory", where a muscle can quickly regain any lost size it has had, is in fact real...I don't lose much sleep over losing muscle while fasting. [0] https://www.sciencedirect.com/science/article/pii/S2352396419305018 https://www.sciencedirect.com/science/article/pii/S235239641... [1] https://peterattiamd.com/can-you-preserve-lean-body-mass-during-semi-starvation/ https://peterattiamd.com/can-you-preserve-lean-body-mass-dur...