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
Sunday will be largely dry with some bright spells of sunshine after any mist or fog lifts and clears.
British Bankers' Association head Anthony Browne warned that some banks could be moving abroad within weeks due to Brexit uncertainty.
Labour said its plan would mean grieving families would not have to pay for either a burial plot or cremation for a child aged under 16.