For me, keto would have been helpful. It’s super easy for me to maintain on keto and borderline impossible to lose fat (practically, not theoretically. and theoretically it’s easy on high-carb too). Okay, maintain a smaller weight is different but still, it would have been helpful. Oh well. I did it around 40, not around 110, let’s look at the positive side
(Yep, I am sure I would live long even on high-carb but eventually I would have found low-carb as I did. And that’s nice even without keto.)
I don’t know regaining weight (at least not all), I am not that type. Both losing and gaining is pretty hard for me, maintenance is the super easy thing. But not on a massively overeating high-carb and insanely high-fat diet for decades. That was too much even for me and now my view about much food or a big meal is a bit skewed forever… But it’s not a problem as long as I don’t stray too far for too long.
BUT I needed my low-carb years before keto. I couldn’t do it before that time. But I wish I was raised up in low-carb. Or if I had a great father and he would make great steaks… (I still didn’t eat a proper steak in my life. I did something with cheap slices of meat in a pan but it wasn’t good.)
Oh well. I have good genetics and no one kept me from eating lots of animal protein and fat ever. Or whatever I wanted. It could have been much worse. Many kids are forced to eat in a certain way.
So I don’t complain. I even have my own brain to use and make my own choices as an adult. It took some time as I had no idea there is a better way but I didn’t cling to my old habits too much.