Insulin:Carbs Ratio

[DTM100]

I am Type 1 using insulin, I am pretty well balanced, (over 90% in target), and I have been having problems with my insulin to carbs ratio and I wonder if others have this same issue.
Sometimes I need one unit of Fiasp to 10gms of carbs and sometimes only 0.5 units of insulin are required for 10gms.
There doesn’t seem to be a pattern to when these changes occur, it varies day to day.This results in me having to continuously chase my glucose levels. I have considered that different foods are digested at different speeds and this isn’t the reason for this variation.
I would appreciate your thoughts.

 

[Antje77]

I would appreciate your thoughts.

Hi @DTM100 , welcome to the forum.

I have posted a similar thread years ago, so yes, same issue here although I'm quite good at quickly adjusting depending on my insulin needs. https://www.diabetes.co.uk/forum/threads/i-c-ratio-carb-counting-fluctuating-insulin-needs.174348/
The one pattern I have found is that on days where I need more insulin in the morning I'll need more insulin throughout the day.

There are a lot of factors that can affect BG and thus insulin needs: