I posted a reply to a similar question on another thread, so I will copy and paste it here.
I became diabetic after too many donuts, company entertaining, expense account meals, motorway service stations, and piling on weight after becoming more sedentary.
I took a lot of advice from my HCP's, and the NHS dietician, I was very well supported by getting test strips on prescription, and did a classic low fat diet for nearly a year, and attended an NHS gym.
This got my weight, and my BG down to a reasonable level.
I wasn't all the way there though, so I did the Newcastle diet, using Tesco shakes, I had read the posts that it wasn't how long it took the weight to come off, or that you could do it with real food, but I decided the Newcastle diet had clearly worked for some, so I didn't want to change to an unknown variation.
It seemed to work for me as well.
To quantify that though, I am happy to be considered non diabetic if I maintain the figures as advised on this site.
http://www.diabetes.co.uk/diabetes_care/blood-sugar-level-ranges.html
I don't chase 4's in the morning. I don't test every 15 mins to see how high my spikes are, I don't worry if I rise by more than 2, if I start at 4.8 and finish at 7.6 I'm happy.
In fact I rarely test at all now.
I do still take 500mg of Metformin, but only as I believe it has other benefits.
I realise that doesn't suit some people, but I didn't want to go from being diabetic, to worrying about being diabetic.
I'm fine if I have a normal Hba1c, and no diabetic complications, I have my annual reviews, and a private health screening as well. After 5 years I'm still good.
My lifestyle wasn't really suited to LCHF either. I did try it briefly, but it didn't work for me due to the limitations.
I enjoy being out, I don't holidays on the tourist routes, and I tend to eat with the locals, and drink with the locals.
Rice, pasta, potato, bread, all feature heavily if you eat street food. So does lager.
I scuba dive, and you can't ask the skipper to take the boat back to shore if all they have is a kettle, porridge, and instant noodles. But saying as I burn several thousand calories diving, not eating isn't an option.
I plan to overland in the coming years, I've just bought a 4x4, so it'll be in poorer counties, which are always carb heavy foods, so again I want to be able to cope with that.
I am permanently on a diet though, in the sense I won't eat a tray of donuts as a snack, I do eat Mediterranean diet when I can, I avoid saturated fats when I can, I do watch my weight, and if it creeps up again I'll go back onto the 800 cal shakes until I'm happy again, but I'll also rob Peter to pay Paul, I can overeat at Christmas, and diet in the New Year.
My tastes have changed as well, I don't enjoy sweet food, I re-educated my taste buds from sweet to spicy, so a very hot chili, or curry is better than a packet of sweets now.
But, and this is important to me, in a pinch I can eat, and live on anything, without worrying what's in it, or what effect it'll have on me.
If I couldn't do that, I would seriously have to change my life, and I don't want to do that yet.