I am now well into my 3rd week of a low carb diet and am trying to keep below 50g carbs per day. I am T1 and have been on an insulin pump for the last 3.5 years which has massively improved my control, but I was wanting to see if I could improve it further. Whilst my overall insulin usage has gone down, I am finding that my sensitivity to insulin seems to have also gone down significantly. I need far more insulin than previously to correct levels or counter small amounts of carbs (<20g). Have any other type 1's had this happen? and is it permanent or temporary? I'd be interested to hear what others have found.