Hi and welcome
@Fent Hughes
Going back to your search for a dietician or coach who supports low carb in the UK, my best suggestions would be to get them to sign up to this forum. The breadth of knowledge, variety of discussions, links to info sources, and general support on this forum is remarkable.
Also to read the
www.dietdoctor.com website. Parts of it are free. Other parts require a signup where you get 30 days free access, and thereafter a charge of £8.99 (or similar) a month. Of course the canny person can sign up, read it all, and then cancel their subscription before the first payment. It is surprising how many people decide to stay though, based on the quality of the info, the excellent recipes, and the menu and shopping plans available.
My third recommendation is to consider one of the low carb diet programs. Several different blogs and websites offer them (including dietdoctor), but there are only two that I know of which track weight, medication and offer more. Those are Virta in the US, and the Diabetes.co.uk low carb programme. Both cost money. Virta is a hefty monthly fee that is usually paid by US health insurance. The Low Carb Programme is a one off signup fee of £30 that gives lifetime membership.
Finding a LC doc is very difficult in the UK because they are restricted by NHS guidance in the advice they can offer.
Finding a LC coach would be easier, but that has a whole other lot of pitfalls. From what I have seen (promos, you tube videos, and coaches who sign up here on the forum trying to drum up business) they often still subscribe to the Calories In Calories Out mindset, with lots of exercise and routines. Great for the metabolically healthy. Not so great for T2 diabetics who have insulin resistance and who tend not to respond well to boot camp thinking.
One thing I will say is that whatever choice your friends make, it needs to be their choice. They would be better researching this themselves, and making choices based on their lifestyle, budget, expectations and long term health intentions. As
@DCUKMod says, people have to want it, engage with it, and prioritise it, in order for them to actually stick to it.