You are right about testing. I lost half a stone in less than a week and was peeing every hour or so before I was tested. I was not overweight when diagnosed Type 2 three years ago. Anecdotally, I went low carb in conjunction with gluten and lactose free for 3 months (December - March) and my weight hasn't changed (5'10" 13 st.). I felt worse, had hair loss, developed signs of skin ageing, had neuropathy signals in my feet and hives on my thighs so stopped.
I have since then researched further and found a treatment for T2 reversal. The fact is that ALL major studies show an INCREASE in disease and death from from low carbohydrate diets. No studies of high carbohydrate diets show similar effects. Demonising carbohydrates in founded on a 2013 celiac disease study. Celiac disease is relatively rare affecting about 1% of people. Greater whole grain intake was shown in a 2012 study to reduce the risk of T2 diabetes by 26% together with a 21% reduced risk of heart disease (independent of cardio-vascular disease). Low carb advocates confuse people by saying inflammation is the cause of disease whereas it is injury that causes inflammation (e.g. smoking injures lungs leading to inflammation and emphysema). Many studies show that it is animal foods and not plant foods that cause inflammation. Some doctors say that carbohydrates are the cause of diabetes however; worldwide, obesity is found mainly in the western world where animal foods (red meat, dairy, eggs) form a large part of the diet.
A study by Hemsworth as long ago as 1934 showed that glucose tolerance is significantly impaired by a low carb high fat diet. In 1948 Walter Kempner MD published the results of his rice diet. This diet was found to reverse morbid obesity, retinopathy, severe kidney disease, hypertension, psoriasis and heart enlargement. What his studies show is that nutritional deficiencies do not occur with simple plant based diets (even with the addition of lots of sugar). You can find out more from this YouTube video presentation by Dr McDougall
I'm going to give it a shot. Daily diet, 565 grams of carbohydrates + 25 grams protein + 5 grams of fat for 28 days followed by the "McDougall Diet". I'll be seeing my GP shortly to tell him my intention and will post my experience and results. Good luck with the low carb diet.