I didn't see all of the programme, but the guy you mentioned didn't appear to care for himself, also the teenage boy of 15 who knew he shouldn't be eating sweets and his bs was 18 at the diabetes clinic, quite shocking
the programme was about the cost to the NHS because of the amount of people being diagnosed with type 2 (an epidemic) and young children too, which was unheard of a decade ago, so sad
The gastric band surgeon said now the majority of his patients undergoing this procedure are type 2, I don't know if they are having the procedure because they were obese to start with before being diagnosed or after diagnosis? I am sure we all have cravings, I know I do, I would love to eat a big curry with rice, but I don't or a Crunchie bar, I don't because they will spike me and I would also put on weight with the larger amounts of Insulin.
We all need determination, guts and will power to overcome things like smoking, alcohol, gambling, foods etc, but it can be done, some may take longer and need more support.