I tried slimming world a while ago with what I would call at best mediocre success. I was miffed at the time and fucked it off. I didn't like the way it felt like an odd cult too. Anyway, I have a dietician now, yep, I'm a wanker, and am now using a kind of 5-2 diet which is giving me great results. We got on to discussing slimming world and she said not all diets work for all people. She gets proper peeved with it as she's been to uni to do this, has a masters but the leaders of these groups have been on a short course and think they're gurus.
Not having a pop at you like obvs. as what with you bring medical you probably know this anyway but just saying.
You can only imagine what she thinks of juice plus