You might wish to mention Dr David Cavan, he developed the BERTIE courses which have spread throughput the U.K. He is very well known Diabetologist and is advocating low carb for type 1 and 2s. (And other types I should think) Chevk out his name on Amazon UK to read boom reviews, his books have...
I was told on a diabetic education course by a dietitian that there was an alternative to preventing hypos when cycling or other exercise, to the ‘take more carbs’ approach. She recommended taking around half the basal the night before and less bolus before exercising.