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Does injected insulin get used up in the presence of blood glucose?

With all due respect, I need a definitive answer to this question please. I can guess.

I really need to know if injected insulin is depleted in the bloodstream as it does it's work on blood glucose.

In other words, if I inject 10 units and eat a banana, is that 10 units depleted in proportion to how much glucose there is in my blood so that an hour later there will be less? Or none?

Or does that 10 units stay 10 units and diminish in blood concentration over time regardless of how much sugar I eat?

I hope that makes sense.

A solid answer to that question will make you my new hero 😀
Thanks

  1. Hi . We are not medical experts, so please keep that in mind no matter who responds here. Your best source for this information is your doctor or your pharmacist. As far as I know, foods that are higher on the gylcemic index require more insulin to process. That's why it is recommended that you inject rapid-acting insulin 30 minutes before a meal high in carbohydrates. Long-acting insulin can releases more slowly and helps maintain appropriate blood sugar levels throughout the day. Here is an article about the different types of insulin that might interest you: https://type2diabetes.com/insulin. Testing an hour or so after a meal high in carbohydrates can help you determine whether the amount of insulin was enough. Are you a candidate for a continous glucose monitor? If so, that can take a lot of the guesswork out of insulin dosing. Did your doctor prescribe different types of insulin for different situations? I hope this helps and that others offer more insight. Wishing you the best. - Lori (Team Member)


    1. Hi there and thank you so much for taking the time to respond 😀
      I should have included more detail.

      I have been using inject able insulin for 10 years and have my blood glucose well controlled. A1C hovers at around 6. So this has nothing directly to with actually taking care of myself. Of course there's no way anybody could know that because I didn't say it. Sorry about that 😀

      This is more of a medical curiosity in relation to my weight training regimen and some experimentation I've been doing on myself that is working rather famously.

      I've been trying to learn the answer to the above question in order to find out how, and also how I might fine tune it a bit more if possible.

      It occurred to me one day: Is this insulin like gasoline that is used up as it does it's work? Or it more like the oil that keeps recycling through the engine? An imperfect analogy, but I hope you get the point.

      Surprisingly, it is pert near impossible to find an answer to this question. Doctors don't even know. It's not the end of the world, but it's going to gnaw at me not knowing.

      Thanks again 😀

      1. Hi . Thanks for clarifying. You might find better answers from someone who researches the actions of insulin rather than from practicing doctors. Researchers are often quite thrilled when people contact them with questions about their work or their fields of study. Maybe you could do some googling and find a few experts you can reach out to. - Lori (Team Member)

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