Low Carb for Type 1?

That is what I was talking about, since the member I was responding to reports eating an ultra-low level (ketogenic level) of carb. That said, it is only something I’ve read and have no personal experience with, as I haven’t tried eating ketogenic myself. But I agree with Thomas that there was probably some other food or insulin or exercise or hormonal effect going on, since I have trouble believing that 3g of carb could raise any adult T1 by 75 points or require 5 units of insulin.


Can’t speak about the volume of insulin, since that is such a personal issues with many confounding things, but my son can easily go from 50-200 on 10g of carbs, so I have no problem believing 75 on 3 carbs. Also, his buddies from diabetes camp couldn’t believe it either. They have a low, take 15g of carbs, and go from 50-110 and are happy. We take 6g of carbs, and if he starts responding on his cgm within 15 minutes give insulin to blunt the glucose climb.


I saw a quote on a Facebook group yesterday where a lady in the T1 group says the has to take a manual bolus of 20u every time she does an infusion set change just to hold her over until the new site is working well (I didn’t even know that was a thing!). I’ve seen other t1s say they need 5u for a cup of black coffee or a glass of wine… seems crazy to me too, definitely not in line with my experience.

I do notice (as I travel for a living and frequently end up eating more or less carbs for several weeks at a time due to circumstance) that when I eat more carbohydrates over several weeks I generally become less sensitive to them and when I eat less I generally become more sensitive to them. It’s as if my body has a set point of how much insulin it desires and adapts those needs somewhat to my dietary trends


EH has up to a 50 point rise from black tea, no sugar. I think with so many of these things, it’s a YDMV thing.

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Tea has caffeine which can raise your heart rate. Tea also has theophyllin and theobromine which are stimulants. So those may cause a BG rise.

But for many people, coffee and tea coincides with time-of-day. Many people have it in the morning, and the rise may be just normal get-out-of-bed BG rise. So it is possible that the tea isn’t the cause.

Some people have tea after they eat, so other possibilities are that the rise is just from the meal.

Not saying these apply to EH. Certainly tea by itself may be causing a spike. Just want to mention that whenever you see something like that, you want to make sure to isolate it with different experiments, different time of day, different circumstances, etc. That helps you know without a doubt whether it is causing the BG rise.

I know you and EH are the sharpest cats in the world who know all this stuff. So this is just general commentary on isolating variables for anyone trying to figure out a particular food or situation they suspect is causing an issue.

I almost put in a disclaimer (typical YDMV that seems to be needed for all posts), but left it out. I hope that this may be an artifact of teenage hormones that will settle out in a few years, since it must be extra hard to keep balanced with that degree of carb sensitivity.

No worries, I enjoy the discussion. Yes it is a pain. Yes, we are hoping that it gets easier to deal with as he ages.

Found this as well which seems to agree with a lot I am seeing and people are discussing here

Thinking back to when I was uncontrolled and eating maybe 70-100g of carbs a day - my tdd was (30 tresiba and about 36 humalog)
After a brief foray down to 33 on the low carb I am back to about 60 thereabouts and I’ve lost 30lb
So essentially based on that - it really appears to not matter how much or what you eat practically - for me at least my TDD remains the same - it’s a little high to the recommended based on weight (should be 49)
That pesky liver just needs to regulate your glucose and whether you eat lots of carbs, protein or just lettuce it finds a way to get that glucose in your blood stream !

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I agree, I haven’t seen any change in insulin or carbohydrate sensitivity since changing the number of carbohydrates I eat (from 30 grams to 100 grams a day). My basal and ratios stay about the same (aside from usual fluctuations), but the amount of insulin I take does decrease simply because I’m bolusing less for food.

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But I think there are also people who respond to carbs with much more sensitivity or variability than others, and for whom high carbs are a much more difficult diet.

Right now we are able to eat medium carbs without trouble. But I know that could change.

That must be true based on the different responses to glucose tabs that I’ve read about here and elsewhere. For me each glucose tab raises my BG 10 mg/dL. Others get a much larger response.

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@bkh And we might get half that response?
But it also does depend on the starting BG and the time of day.

Sometimes it is not very precise - more of just like - throw something at the LOW and see what happens.

Trying to bump up from 100 to 120 is pretty easy. But trying to go from 40 upwards can be more difficult. But then other times it can be easy.

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Like everyone I am sure we have the same problem. This can be very frustrating of course if you let it be.

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4 posts were split to a new topic: Treating night time lows

For me it’s easy. I count “50” (pops a glucose in mouth), “60” (eats another) “70” (eats another) “80” (eats another) “90” eats another, and “100” as I eat the last one. I can count by 10s even when quite impaired, and lucky for me it just works.

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I am Jelly. It would be so nice to be able to manage that way.

OTOH, that is a bunch of calories.

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Indeed. That’s part of the reason my BMI is 25 now instead of the 23 I enjoyed a decade ago.

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I LOVE this drawing! Can’t believe I missed it when you posted it :slight_smile:

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Wow! that’s tough! [quote=“TravelingOn, post:33, topic:2421”]
EH has up to a 50 point rise from black tea, no sugar. I