Is this because they aren't diagnosed as often as fatties? Therefore they can have higher blood sugars a lot longer before diagnosis.
TOFIs don't fit the criteria. The media and even the NHS encourage fatties to get tested. They don't say anything about thinnies. Just a thought.
I also wonder about folk like me. An ex-fatty who lost all the excess weight on low carb after diagnosis to become a TOFI and still nearly 3 years on from being a TOFI I have no idea how to combat insulin resistance. There is very little information.