Bolus for protein

[SueJB]

Hi everyone,
Has anyone got any idea how/when/why to bolus for protein? No idea what to do about this but think because I eat a fair amount in comparison to carbs, think I need to get some info and do some reading.
Thoughts and links would be nice if you've any ideas

 

[Muneeb]

Its a bit of trial and error. But I have to take a split bolus, so inject half at time of eating (into leg) then 2-3 hours later inject the rest of the fast acting. Seems to work well. Typically calculate bolus required as half that for carbs. So if my C-I ratio was 10:1. For protein that would be 20:1.

 

[kitedoc]

The time to bolus for protein tends to be when the liver needs to make some glucose from whatever protein is spare, left over form structural body needs @SueJB.
That time is said to be when carb intake per day drops to less than 35 g, per day although this may vary from person the person I gather. (See Dr Bernstein's Diabetes Solution)
There is an insulin index developed by the same or similar folk as those who developed the Glycaemic Index and Glycaemic Load. see https://optimisinghealth.com/food-insulin-index.
If you look at some of the graph further down the article it shows that in a non-diabetic various protein foods cause release of insulin, and also for fat.
There are complicated formulas for calculating how much insulin to give for x amount of protein, fat etc but I must admit I use 50% of grams of protein to count towards protein and fat, with a split dose of novorapid delivered 1 to 2 hours apart, as the BSL rise from protein usually takes longer to appear than it is for carbs. In moderation that works well to keep BSLs in check.