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Confused about how insulin is working
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<blockquote data-quote="StewM" data-source="post: 2396650" data-attributes="member: 538114"><p>This is one of those DAFNE claims I’d be extremely sceptical about. There a number of assumptions at play in this claim that aren’t mentioned. </p><p></p><p>1) If you took insufficient Insulin for your Carbs there’s no reason to assume a Spike at hour 2 will be gone by hour 5.</p><p></p><p>2) It assumes a Basal rate that’s “doing you favours” as DAFNE also claims taking a <15 gram snack in between meals won’t raise you blood sugar. The only reason that would be the case is if the Basal is set at such a level where it could take care of it on its own. </p><p></p><p>3) It assumes if you go out of target during the first two hours the rest of the remaining dose will bring it down. The majority of fast acting insulins out there will have done the majority of their work in the first two hours and will begin tapering off at approximately 2 hours, if not earlier. So clearly they are assuming the Food will have been fully digested in the first two hours, which not all foods will have. This is mostly likely to be the case on High GI foods. </p><p></p><p>None of this is to say this won’t happen, but it is by no means guaranteed due to a lot of unexamined variables. For instance in the DAFNE course I was on, if any of us were high at hour 2 it was almost certain we would be even higher later.</p></blockquote><p></p>
[QUOTE="StewM, post: 2396650, member: 538114"] This is one of those DAFNE claims I’d be extremely sceptical about. There a number of assumptions at play in this claim that aren’t mentioned. 1) If you took insufficient Insulin for your Carbs there’s no reason to assume a Spike at hour 2 will be gone by hour 5. 2) It assumes a Basal rate that’s “doing you favours” as DAFNE also claims taking a <15 gram snack in between meals won’t raise you blood sugar. The only reason that would be the case is if the Basal is set at such a level where it could take care of it on its own. 3) It assumes if you go out of target during the first two hours the rest of the remaining dose will bring it down. The majority of fast acting insulins out there will have done the majority of their work in the first two hours and will begin tapering off at approximately 2 hours, if not earlier. So clearly they are assuming the Food will have been fully digested in the first two hours, which not all foods will have. This is mostly likely to be the case on High GI foods. None of this is to say this won’t happen, but it is by no means guaranteed due to a lot of unexamined variables. For instance in the DAFNE course I was on, if any of us were high at hour 2 it was almost certain we would be even higher later. [/QUOTE]
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