fat clubs work, they just make you think of what you are eating, as soon as you stop, you stop thinking " Oh if I eat this box of KK's I'll look a right bloater on weight day " , so you put weight back on

no harm in them at all imho, they offer you support, they give you the tools to lose weight, but they mainly just make you think about what you are eating

I installed the Fitbit app again, it had a section to record what you eat and what calories it is, so I now think " do I really need to eat this Danish with my coffee as its 250 Calories "