If you read what she said in the interview (Mail online has it) she must have adopted a low carb diet - 'I don’t eat bread, potatoes or pasta now. I don’t have chocolate in my house.' That is the only way to lose and keep off that amount of weight - without risking surgery. She may not look as "cuddly" etc now, but she will be healthier and has probably extended her life which must be the most important thing. It's really bad for your body to be so overweight and none of us want diabetes, heart disease etc. If you find that you're gradually gaining weight (as I did, going from 10 stone to 14 stone over ten years) then you need to change your diet. Lose the carbs - the bread, potatoes, pasta, like Dawn French did. Eat meat, chicken, fish etc and lots of green vegetables. You will find you stop craving the carbs and your weight will gradually and safely drop. I did this and lost 50lbs which I am able to maintain by avoiding carbs. Good luck!