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Type 1 Diabetes
Meal spikes
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<blockquote data-quote="In Response" data-source="post: 2692675" data-attributes="member: 527103"><p>There is often confusion from people with Type 1 who read the threads about type 2 saying that BG should return to normal after 2 hours.</p><p>This is correct if you are using incredibly fast insulin that the human body produces. However, it is not possible to manufacture insulin that works as fast. The insulin we inject to work with the food we eat lasts about 4 hours. If our BG had returned to pre-meal levels after 2 hours, we still have active insulin on board which will drop our levels further.</p><p></p><p>It is possible to pre-bolus (take your insulin before eating) to reduce the spikes but this requires timing the peak of your insulin profile (Google "NovoRapid profile" to see a graph of the activity of NovoRapid, for example) with the peak of the carb absorption of the food which you have eaten bearing in mind that different food will be absorbed at different rates (which is why we talk about treating hypos with "fast acting carbs" ).</p><p></p><p>I agree with [USER=53162]@Juicyj[/USER] about the extra anxiety which can come from watching CGMs rise after eating. I temper my anxiety by remembering the amount of active insulin I still have on board rather than stacking insulin and causing a hypo. Taking extra insulin because the graph is rising is dangerous.</p></blockquote><p></p>
[QUOTE="In Response, post: 2692675, member: 527103"] There is often confusion from people with Type 1 who read the threads about type 2 saying that BG should return to normal after 2 hours. This is correct if you are using incredibly fast insulin that the human body produces. However, it is not possible to manufacture insulin that works as fast. The insulin we inject to work with the food we eat lasts about 4 hours. If our BG had returned to pre-meal levels after 2 hours, we still have active insulin on board which will drop our levels further. It is possible to pre-bolus (take your insulin before eating) to reduce the spikes but this requires timing the peak of your insulin profile (Google "NovoRapid profile" to see a graph of the activity of NovoRapid, for example) with the peak of the carb absorption of the food which you have eaten bearing in mind that different food will be absorbed at different rates (which is why we talk about treating hypos with "fast acting carbs" ). I agree with [USER=53162]@Juicyj[/USER] about the extra anxiety which can come from watching CGMs rise after eating. I temper my anxiety by remembering the amount of active insulin I still have on board rather than stacking insulin and causing a hypo. Taking extra insulin because the graph is rising is dangerous. [/QUOTE]
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