I smoke so I eat very little to make up for it. I love fasting. Once you can go 24-48 hours without eating, you can do amazing things with weight loss/control. It helps that I have no appetite. Long story due other medical issues that had long lasting effects (15 years now)
I keep my weight down. That extra health benefit allows me to smoke and drink more.
I know it shouldn’t be that way but I’m human. My wife can eat everything and stay as slim as she was at 20. She does work out. We have 2 very different approaches. Won’t matter she will out live me. She is 11 years younger.
I was trying to do a 30 day fast last year when my wife went to her sister’s place for a couple of weeks. Unfortunately, she threatened to cut her trip short if I didn’t eat, so I only did five days.
However, after the first two days it was ridiculously easy. One lesson learned.