I can't exercise properly (dodgy body and physio will only let me join a rehab gym where you can only use the cardio equipment for max 5 mins at a time) ...

so, for me, portion size, portion size, portion size.

I've lost around 8-10kg just by reducing portion size and cutting down (drastically) on alcohol. I've always eaten quite healthily though, just my portions were too big.

I reckon sometimes I accidentally do the 5/2 diet. Eat whatever you like for 5 days, reduce calories to 500 for two days a week.