The premise of this show makes no sense. The fit trainers will have more muscle mass, and more experience with exercise, and that muscle won't atrophy over a few weeks of weight gain. So they'll find it much easier to lose weight than their "fat" friend will.
Which of course is counter-productive. The "fat" person is going to then have an extra belief that "the trainer could do it, why can't I?". By all means encourage health and fitness, find better ways to do that, but don't encourage fit people to gain weight out of some misguided sense of solidarity.
Former trainers on this show have subsequently struggled with their weight, because it's damaged their bodies. There are better ways to encourage fitness than this.
Which of course is counter-productive. The "fat" person is going to then have an extra belief that "the trainer could do it, why can't I?". By all means encourage health and fitness, find better ways to do that, but don't encourage fit people to gain weight out of some misguided sense of solidarity.
Former trainers on this show have subsequently struggled with their weight, because it's damaged their bodies. There are better ways to encourage fitness than this.