Losing weight "takes resolve" and "encouragement" and the NHS needs to take into account how much of a struggle it can be to diet down to a healthy BMI.
Professor Mike Kelly, director of the centre for public health at Nice, explained:
It is not something where you can just wake up one morning and say 'I am going to lose 10lbs' - it takes resolve, it takes encouragement, and one of the things about involvement in these programmes is the mutual support from others who try to do the same thing seems to be hugely helpful from a motivational point of view.
It is not just a question of 'for goodness sake pull yourself together and lose a stone' - it doesn't work like that, what we are trying to acknowledge here is the reality that people carrying excess weight face.
More top news
The starving toddler has been taken into care following the incident in Chile - but it is thought the dog may well have saved his life.
The contract that set the Beatles on their way to superstardom is to go up for sale for the first time, and could fetch as much as £500,000.
The shortest man ever to have been measured has died aged 75, Guinness World Records has announced.