Insulin to carb ratio and lispro insulin onset & peak

Pharma
1

Hello,

With insulin humalog mix50 (50% fast / 50% intermediate) that has an onset = 15 minutes, and a max peak = 1-3 hours, and considering an ICR of 15g of carbs / 1 iu insulin, the total carbs needed in order to maintain that ICR has to be calculated for the first 3 hours, or for a shorter time?
Let’s let’s hypothesize 10iu’s insulin 15’ pre-workout and 150g of carbs (10iu’s x 15g = 150g), do I have to “spread” this amount of carbs over these three hours (or two, or less, or more) following the injection?
For example:

  • 50g few minutes after insulin inj (so, immediately before starting lifting weights)
  • 50g during workout (60’ workout)
  • 50g 30-60’ post-workout (so, 90-120’ min after insulin inj)?

Thanks,

F.

2

I honestly would not use this product for bodybuilding. I would either use it separately or just fast acting.
Insulin is nothing to mess around with and this scenario makes it way more complex than it needs to be.

1 Like
3

thanks for your reply. at the moment I’m just gathering information to understand how it works and learn as best as possible… precisely because it’s a “complicated” product to manage.

4

Yep.

Most will only use fast acting with meals and perhaps lantus as a baseline.

I have never understood why anyone would use insulin unless you are a competitive bber.

I’ve done carb rotation up to 1000 grams of carbs per day and never touched it.

It’s super easy to get fat on it as well….

5

I think people get fat because they say “I wanna take X amount of insulin so I have to eat X amount of carbs” instead of just taking planned carbs and matching insulin to that. Those are the more is better mentality people.

1 Like
6

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