when all of this new and fancy (and overly priced) fast acting insulin came on the market, i was told that now, instead or having to wait 20 minutes after injecting R insulin before our meal, we could inject and eat right away. wow, was that amazing. this took the cruel planning out of everything. now sitting down at a restaurant could be as easy as pie (yes, that pun is intended).
but, the longer i was on Humolog (and then later, Novolog) i was being told that the insulin actually doesn’t start effecting me until 15 minutes after bolusing. that i was supposed to wait between 5 and 10 minutes after injection and eating my meal. and, i was also told that if i were eating a high carb meal, like oatmeal, i should wait about 20 to 30 minutes after bolusing before sitting down with my spoon and my appetite.
now that we have all these CGMs and multiple finger stick testing around, we can find out the best ways for us to bolus and wait before eating.
i used to be on the Dexcom, and i remember others telling me that they pre-bolused depending on the sensor’s downward trend. that they wouldn’t begin eating until the dex showed their BGs trending downward, meaning, i suppose, that the insulin was alive and fruitful in their system. some people (on another D website) said that they would wait up to an hour after bolusing before eating. personally, i would drop dead if i actually waited that long (unless, of course, my BGs were over 300 ). so all of this new info confused me. i understand pre-bolusing for 1/2 hour if my BGs are very high before a meal, but i know also, that we are all different and have different systems in our different D bodies.
i was curious to know your system. how do you pre-bolus and what are your secrets?