To get it evened-out really well, youāll probably need to consider the specific foods a bit more carefully too. After you find a CGMS system which actually works with good reliability, (hoping, hoping hoping, !!!) thereās four different kinds of mealtime adjustments you can make to help levels stay consistent (not just one):
#1, Bolus lead-time, is already well-discussed by other posts.
#2, The Overall glycemic index of the food in the meal is a big deal. If your favorite breakfast consists of full-sized Raisin Bran and Orange Juice servings, for example, the situation is durn near hopeless: Most anything which you try to āhandleā such a strong peak will cause Hypos either before or after, because no existing insulin formula can both leap up and then go away fast enough to match such a carb-heavy meal. If you absolutely love that stuff, and wonāt (or CANāT, for other health reasons) add fat and protein in order to slow it down, then the ābestā of many poor choices is to probably to take the big dose and āback-fillā like crazy for the following hours, during which the insulin continues working strongly⦠but such a meal is pretty much impossible to ābalanceā by mere timing tricks, youāll have to nibble another āfix-upā meal/snack later. Which could be a danger, if your work can get wild and lead you into un-tested periods while IOB is still active.
#3 Best tool? Iāll say, although some other might disagree, āMix it upā with fat and protein to match the insulin curve. I personally do not like faked Basal levels which arenāt really doing āBasalā work at all, but are really cranked up to do sort of āBolus-likeā tricks while youāre still asleep, getting ready for a carb-heavy meal to follow. (I think that Basal levels should be set by totally skipping any meal or snack which would normally be affecting those particular hours, but my āthinkingā is NOT THAT OF A MEDICALLY QUALIFIED PROFESSIONAL.)
#4 Very closely related: If you eat a mixed meal, pay very close attention to what youāre eating first. High-Sugar drinking before the peanut butter which is intended to moderate it? That probably wonāt work very well, most people need to eat the āmoderatingā low-Glycemic-Index Foods first. (Hereās a great example: Dry red wine first, THEN the āempty caloriesā baked potato much later. (If you gotta have one.) Butter or Sour Cream all over the potato and eaten at the same time, usually doesnāt work as well as eating a smaller serving of appropriate āModeratorā food well before the carb-heavy item even begins to be consumed.
And of course, if youāve moderated āTOO muchā, as low-carb people always do, ON PURPOSE, then youāll need to use an extended basal to stretch out the fast-acting insulin activity. But this group of posts isnāt about that problem, itās about the insulin being too SLOW to handle a rapid peak from teh high-GI foods. Smaller servings of the āguiltyā high-GI foods, or āmoderatingā those items with preceding protein/fat/alcohol, dosing high and āback-fillingā later, or doing the already-discussed pre-bolus trick are your only options.
Of these, putting yourself into a āback-fillā requirement from overdosing, or digging a hole which wants to get āwiderā, even as youāre eating as fast as you can, from having pushed the pre-bolus timing just a bit to far⦠these are both risks which the other options donāt have My choice is to both modify the meal for lower GI and smaller proportion of total carb calries, AND (if itās still going to be relatively āhigh-carbā to start the meal with the lower-carb āmoderatingā food items if overall meal will be carb heavy.
I never pre-bolus by more than 15 minutes, because it can get quite difficult to dig out of those āinsulin overwhelming the food!ā holes. If you think people look at you funny now, well⦠Your co-workers get really puzzled when youāre lunging for your SUGAR TABS while the conference table has 50 donuts and bagels lying there āfree for the takingā. And the poor Restaurant, when the waiter has already brought you your food but youāre lunging at tubes and bottles of ācandyā instead of the stuff their cook has just worked so hard to make. And youāre shaking and sweating like a dying leaf in a late October rainstormā¦
Before the "GI concept was invented, I did that a lot. Not good. All around, itās not good. (Just IMO, of course.) Use all your tools, not just pre-Bolus lead time.