Insulin/Carb Ratio

Jade R
By Jade R Latest Reply 2013-04-13 15:49:52 -0500
Started 2012-07-03 22:28:47 -0500

Is there a way to calculate what would be your best ratio if you have a beginning steady blood sugar, a certain amount of carbohydrates, and a finishing steady blood sugar? The other day I had TWO eggs for breakfast, started with a steady 80 mg/dL, didn't take insulin on purpose (I was curious because it just seems ridiculous how much insulin I need these days), and ended up with a steady 230 mg/dL a couple hours later. Which just seems ridiculous to me, from the whole 1 carbohydrate I ate.

22 replies

Type1Lou 2013-04-13 15:49:52 -0500 Report

Just another thought…besides food, other factors may affect BG…stress, frustration, infection,…and probably many more. If it were only food, it would be so much easier to control…

Set apart
Set apart 2012-07-07 07:19:27 -0500 Report

Duh you got me baffled, I am less than a year into this as a T1. I can eat 2 eggs and will be at perfect BG in 2 hrs., sometimes I may need at least 15 g of c and still not need any type of correction with. Rdg of 80bg. Just throwing this out there, could stress have led to your spike?

marshagolightly 2012-07-04 17:56:23 -0500 Report

Look up glucineogenesis. I have to be careful of a delayed spike from too much protein. I started out at 75 before dinner last night. Ate 1 bun less cheeseburger. Even took a small bolus for the greens I was eating. 3 hrs later 160.

Setzer 2012-07-04 15:53:01 -0500 Report

Odd that you spiked that much from just eggs. My doctor told me that for things that are basically all protiein, like eggs, I don't have to take insulin.

Type1Lou 2012-07-04 08:31:32 -0500 Report

Jade, Are you on a pump? If not, your body needs a basal level of insulin to keep it in balance as well as a bolus before each meal based on the carbs you eat. I can only surmise that you had insufficient basal levels at that time to keep your BG in check. The 2 eggs shouldn't have caused that spike. Our basal level requirements also vary during the course of the day. I am on a pump and my basals are .15 unit/hour from midnight to 3 am; .50 unit/hour from 3 am through midnight. A non-pumper would use a long-lasting insulin such as Lantus to provide a basal level and a fast acting insulin (like Novolog or Humalog) for their bolus. Hope this helps.

Jade R
Jade R 2012-07-05 21:53:38 -0500 Report

No I am not on the pump, I have been however and got my first pump over 11 years ago. However I switched back to shots about a year ago. As I said to dietcherry, my basal rate is correct. It works fine fasting and everything. Nice and steady. I've been diabetic for 15 years I would hope I know how basal rates work.

Type1Lou 2012-07-09 10:00:53 -0500 Report

In rereading this discussion, it occurred to me that because you are on Lantus, your basal delivery of insulin may not be as fine-tuned as it was/is while on a pump. Lantus has a slight peak right after it is taken then gives a steady rate during the remaining 24 hours. Do you take more than one injection of Lantus (some do)? When I was on MDI, I only took one but my endo had changed it from evening to morning because I'd been experiencing some really dangerous morning lows. Pump delivery tailors the basal insulin delivery to your body's needs at different times of day and takes into account activity levels. It could be that your morning basal requirements are higher, thus explaining the spike…just a thought.

Jade R
Jade R 2012-07-09 12:10:05 -0500 Report

Thanks that is a good thought but I have done fasting tests of my Lantus basal and it seems to be right on cue. Even when I was on the pump I was using a steady rate all day.

Type1Lou 2012-07-10 10:00:02 -0500 Report

The other thing to keep in mind is that our bodies are never static and what worked at one time is not a guarantee that it will always work…that's what I discovered and the reason I'm pumping now vs using MDI. I'm finding that living with Diabetes is a continual adaptation but doable with the correct motivation and tools available to us today.

Type1Lou 2012-07-06 12:39:29 -0500 Report

Well, then you've got me stumped and I have 36 years of living with my Type1…guess we're never too old to learn. Just curious, why did you switch back to shots from a pump…I've only been pumping about one year now…resorted to the pump because I was experiencing too many scary morning lows while using MDI of Lantus and Novolog. The pump is definitely helping me.

Jade R
Jade R 2012-07-06 22:47:16 -0500 Report

Well I was 8 when I got my first pump and it was great but I was getting kind of out of control for a while recently, it was like I had *too* much freedom on it. I switched to shots to sort of try to control myself more. Logic being I'd eat less and more regularly if I have to take a shot every time I have to eat.
Some other reasons are I had a the Paradigm CGM but HATED it, and got a Dexcom CGM which I LOVE, but its two monitors to carry around if I was still wearing the pump. It was also such a great break from having that thing on you 24/7. It was almost all I had ever known and you really don't think of it as being that annoying until you take it off and you just feel so damn FREE. Haha.

Type1Lou 2012-07-08 15:36:06 -0500 Report

Dear Jade, Thanks for sharing! I didn't develop my Type1 til age 27 and am sooo grateful that I didn't have to deal with it as a child or teenager. I resisted using a pump for years because I didn't want to be hooked to something 24/7. I did really well on MDI (lowest A1c then was 5.9) until a few years back when my sugars were climbing but I was also having scary morning lows. (Probably the result of turning 60 and subsequent body-sabotage??) The pump seemed to be the solution and I'm not sorry I now use one. Please let us know if you've gotten an answer to your question. I found that dealing with diabetes is a continual adaptation and learning experience. Best wishes!

dietcherry 2012-07-03 22:40:03 -0500 Report

Jade I think you were just experiencing the natural upswing in your BG and with no insulin to counteract it. There are so many other variables that affect BG at any moment. I cant answer your questions any further than that—sorry!!

Jade R
Jade R 2012-07-03 23:39:13 -0500 Report

No, that's not it. My basal rate is correct, I had taken it, and I don't normally experience a "dawn phenomenon."