@sirfredfredgeorge
Actually there have been a lot of reports and research by experts on the clear link between poverty and obesity. Which is the responsibility of successive governments.
Obviously there are other causes too. Mental and physical health conditions (and the medication to treat these conditions).
Again, something largely within the power if government to change, i.e. better funding and treatments for mental health issues, prompt diagnosis of physical conditions - GPs to no longer dismiss patient symptoms (especially women), no more long waiting lists for treatments (with patients left with limited mobility and pain whilst waiting), reconsidering certain medications depending on individual patients and their circumstances including vulnerability to obesity), etc.