I found that eating a lower carb diet, it seemed to make using a pump a bit easier and had less worry about hoi g too high. For some meals, I was able to just use my basal and leave the bolus alone. However, through eating more fat like full fat yogurt, cream cheese, blue top milk, my bodyweight increased a tiny bit resulting in more basal and also there was a marked increase in my triglyceride and LDL was higher than my HDL so got advised to take a statin which then started to affect my vitamin D levels.
I now still eat low carb, but eat a lot more fish, eat small amounts of meat and increased my veg consumption but not potatoes. I lost the extra bodyweight and my cholesterol has dropped a fair bit with just taking a statin 3 times per week.
So beware of cholesterol rising and then decide what to do