Well done on your excellent result. I wonder if your doctor knows how the body counts calories? Sorry, I've been doing all the right things, reduced calorie, low fat, for the best part of ten years and I've got the food diaries to show it. Yes, I lost some weight but the medical profession cannot explain why my "plateau" has lasted so long. I've recently been watching a lot of Jason Fung videos and after all these years I feel that I have found somebody who actually makes sense.
As for the weight loss alone being responsible for one's HbA1c coming down I found this in a BMJ article:
"In contrast, consistent evidence shows that weight loss is associated with extended life expectancy for people with diabetes, and that weight loss of around 15 kg often produces total remission of type 2 diabetes, they write."
I have a problem, I gained 40 kgs thanks to being prescribed Rosiglitazone and then being prescribed Citilapram for the anxiety caused by weight gain. Then when the Rosiglitazone started to affect my liver function I stopped taking it and lost 45 kgs but because my BG was increasing I was prescribed Gliclazide, yet another drug increasing insulin production (insulin, the fat storing hormone) and yes I gained 10 kgs. I think the statement "that weight loss of around 15kg often produces total remission" is definitely misleading and probably inaccurate. Not entirely wrong, but not entirely right.
So, basically, you doctor needs to update his knowledge. If you think of how old your GP is and when he went to medical school, that's probably how old his knowledge is.
Bit arrogant. Google may not have all the answers, but a medical degree certainly doesn't make anyone an expert on diet, nutrition or diabetes. The clue is in his job title, General Practitioner.
Brilliant idea, my wife goes to her surgery's PPG and it has been an eye opener as to how the surgery works and the problems they encounter. You might find, as in my wife's PPG, that it's more a platform for the GPs to get their message across and also where there are multiple surgeries (my wife's practice has 2 surgeries in totally different areas, although only a few miles apart) issues being discussed may concentrate more on one area than another. Although one would think that Diabetes is a problem to varying degrees whatever social background, race.
If his medical degree has empowered him with so much knowledge about diet, nutrition, diabetes perhaps he'd liked to say how much time they spend studying any of them in their medical degree. In the 70s and 80s it wasn't much, perhaps it's changed. What's more important is that you already have an ally, your DN, who sounds like a good'n. Hang on to her and cultivate the relationship, she might eventually get the GP listening to what's going on in the world of diabetes. Maybe?