I'm not sure low-carb is necessarily effective for people with serious insulin dysregulation. I'm pretty sure for Type 1 in particular, avoiding carbs is insufficient (you also require insulin injections). Personal bias: Dad has diabetes, caused by pancreatitis, and although minimising carbs led to some weight loss (not that he is/was overweight), it has no impact on his blood sugar.
The latests theories point to gluten to cause a leaky gut, that causes complex foreign molecules to enter the bloodstream, and as some molecules are similar to our own, this causes the immune system to attack some cells in our body. The cells in the pancreas that make insulin are one of these.
The bad news is that if you have Type 1, you can't be cured, and need insulin for life.
