My wife and I are the opposite. I can eat a cheeseburger every night and stay slender + low chloresterol etc. I do OMAD twice a week, which probably helps a little. It doesn't feel natural to always say three meals a day.
It’s just challenging in the context of real life. A friend wants to grab lunch, a friend wants to have dinner, my spouse the Cookie Monster is busy polishing off three eclairs next to me while I’m having my morning black coffee.
For example if you have an incredibly physical job and put away 8000 calories daily but maintain a low BMI you suffer more cell damage. Similar for users of stimulant narcotics (legal or illegal).
Perhaps a reader here is familiar with this study.