A quick search found one season’s winner lost 60 pounds in 56 days. He was 6’ 6” and went from a 38” to 31” waist.
Thanks for looking. That’s nearly one pound a day. High Stress, high calorie usage environment. That one guy who only built a hole in the ground and got his fish food supply ready was smart.
In a similar vein, I once had major surgery and noticed I was losing half a pound a day from not eating- did not feel like eating. I had to make myself eat until I regained my appetite.