/fit/ I need your help, my dad is fat as hell.
He's 60 years old, 5'11" and about 300 pounds.
He's a taxi driver and he works around 14-18 hours a day or so, probably around 6 days a week. Because of this his diet consists of mostly fast food and other nasty shit. He used to be in good shape but after an accident fucked up his back, he's slowly gained it up to where he is now. Now because of his weight(I assume) he has some serious hip problems(and needs a new one) and has a pretty fucked up ankle(from a snake bite and his weight). Between his injuries, weight, and his work hours, he can't really work out so I'm trying to get him a diet together so he can hopefully lose some weight.

Is 2500 calories a day sound about right? I figured he would need around 300 grams of protein a day, 70 grams of fat, 168 grams of carbs(adding up to 2500 cals). I know someone his size should probably eat more fat but his protein takes up so many cals(essentially 50%) I figured splitting the fat and carbs into 25% of his cals would be right.

Thanks for the help, sorry if this is confusing, I'm all fevered up right now