I'm not a hardcore Bernsteiner but this technique is just tremendous.
For many months I was eating most of my meals very low carb, usually ~6-8g per meal, almost always the complex slow carbs found in vegetables and such. I wouldn't bolus at all, and I would experience a mild BG bump after the meal, maybe 20 points or so. It would linger there, and then go another 10-20 points higher 2 or 3 hours later, presumably due both to the body converting protein into glucose, and perhaps the fattiness of the meal slowing down the absorption of the veggie carbs.
That's already pretty great - I know many diabetics would love to have gentle curves like that after their meals. (And I'm still in honeymoon, and try not to get too proud of myself)
Now I'm eating the same meals, but I've added Regular insulin. The theory behind it is that the long, slow insulin curve from the Regular better matches the long, slow glucose rise from a low-carb meal than does the fast, steep insulin curve from modern fast-acting insulin.
So far? No glucose bump at all. The line just stays flat. Like, my post-prandial blood sugar is lower than most non-diabetics', and it stays right where it should stay. I'm doing only 2 units for a meal like this, and I inject anywhere from 30 to zero minutes before eating (the gentleness of the slope means that there's much more wiggle room with timing). No severe lows at all - sometimes I'll notice that I'm in the high 70s and I'll correct with a bite or two of candy.
I heartily recommend this technique. I'm not a hardcore low-carber, I do have carby meals from time to time, and don't begrudge anyone that chooses a more normal diet than I do. But I do think that this is something that every insulin-dependent diabetic should have in his toolbox.
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