10 years ago my dietitian told me I am Coeliac w/o running any test. Anyhow, I started a gluten free diet and I lost about 65 lbs.
I don’t think I am coeliac but I eat gluten free and it’s easy for me to control my BG and it good for my metabolism.
I can't say I'm overly impressed with the dietician you saw.
That said, testing for coeliac is inexact, and even someone who is coeliac can pass the test in certain circumstances, meaning their antibody levels are low at the time. Bloods should be followed up by a colonoscopy to look for gut damage caused by glute.
I too eat a strictly gluten-free diet and have done for a few years now, on instruction of my Endo. I don't see him for diabetes (although we do chat about it sometimes), but for my thyroid.
He instructed a comprehensive panel of bloods to look for auto0immune conditions - due to an extreme family history. I dodged that bullet, but with his knowledge I had not gluten loaded for the test, as I wasn't eating myuch anyway and to load up would not reflect my lifestyle at that time.
Although I passed the test, I declined a follow-up colonoscopy, on the basis I felt I was symptom-free, but some time into GF I found I felt better. Bearing in mind the treatment for coeliac is a gluten-free diet, I'm happy just to continue with that.
If living GF works for you, don't change it. I do agree that ditching the gluten was likely a factor in your weight loss, and that weight loss is likely also a factor in your blood glucose control. Both of those are common phenomenon with t2 diabetes.
If it works, just keep doing it.
I'm not keen on labels, and quite happy not to have to carry coeliac with me. If I eat gluten it's not too pleasant, but unlikely to see me off as a one-off.
