It really doesn't make sense that the NHS pays for "stopping smoking", which brings in lots of revenue, but doesn't help obese people, to anywhere near the same extent (in answer to those that are bringing up spending costs).
OP, I agree with you about the disgraceful lack of help.
I've lost five stone, at the start I used appetite suppressants that I bought online, otherwise I wouldn't of been able to do it. I was lucky that I could afford gym membership after losing two stone and pay for a PT assessment.
My gym has scales and I use My Fitness Pal, but I also had a family holiday to keep me on track.
I think that a lot of obese people's issue, go into the realm of MH problems. If the obese person had chosen another addiction, smoking/drinking/drugs, there would be NHS and Charity provision.
I personally don't like what SW and WWs preach, but there should be better services, which in fairness, most Doctors are calling for, as well.