hahaha I saw the same program!
That English bloke had an impressive appetite on him. Chinese takeout for 5 in one sitting! I had to give the guy credit though for making an effort to lose weight. He was clearly commited to his plan even though it meant eating salad instead of his favourite, kabobs and chips.
In regards to the South Carolina woman, her son was an enabler. Though she had a remarkable lack of willpower, the son was buying the junk and feeding it to her.
That last bit at the end where the woman said she'd tried all manner of diets and was powerless to control herself was absolute bollocks. I'd hate to be rude to someone with an obvious disorder, but what does she expect? Eat less! It's not complicated.