Spanish olives are my goto snack at night or HB eggs.

Muscle loss and starvation modes during a fast have been disproved. HGH goes up greatly along with an percentage increase in metabolism. I gained muscle and still lost fat without changing my workouts. Your body at some point will scavenge senescent cells and old enzymes to supply protein. The processes of autophagy and microphagy are very beneficial. You can eat or you can heal, but not do both well at the same time. Perhaps that's why animals instinctively stop eating if sick or injured?