Hi trying to get things figuered out. Been type 1 for 8 years. 2 years ago was overweight by 20 lbs and used up as much as 60 of basal (lantus) and 45 of novorapid (bolus + correction) so i started a low carb diete and within a years when from 230 lbs to 190 lbs (i am 6.2 feet). I now use 20 lantus + about 18 to 24 of novorapid. What suprise me is that my i:c did not neally change 1:8 breakfest 1:10 lunch 1:13 supper. What really changed is mu isf. One unit use to drop me by 1.5 mmol ( 27 mg/l) now it drops me by about 3 mmol (54 mg/l) wich is what i dislick the most. Because before if i mist calculated my carbs and gave 1 or 2 extra it did not impact that much but now it does. Did this ever happen to someone and is the only way to be less sensative to insulin to increase my body weight.