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Low hba1c but glucose spikes. Does it matter?
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<blockquote data-quote="IncogKeto" data-source="post: 2596204" data-attributes="member: 556471"><p>In addition to the carbohydrate content, there are numerous other factors that can have a bearing on an individual's glucose response to a particular meal - such as activity level before/after and any possible residual effect from food intake earlier in the day. Fat and fibre content will modify the rate of absorption and protein will itself induce a release of insulin in addition to that caused by the carbohydrates.</p><p></p><p>Taking the example from your CGM graph of the pizza that you had for dinner, your glucose response would be different depending on your choice of topping. Your peak glucose level on that occasion occurred after about two and a quarter hours but in theory you could have delayed it even further by adding more cheese to the pizza - even with the carbs remaining at 80g.</p><p></p><p>If you're trying to establish how your body responds solely to carbohydrates then an Oral Glucose Tolerance Test may be of value to you since it attempts to minimise the influence of those other factors. The test is generally done in the morning with the patient in a fasted state (to ensure the maximum time since their previous meal) and they're instructed to remain seated throughout (to remove activity level from the equation). The drink contains only carbohydrate (ie no protein, fat or fibre) and because it is a standardised quantity it allows the patient's results to be compared against that of other research subjects.</p><p></p><p>Rather than wasting your energy trying to talk an NHS worker into giving you the test, I'd suggest that you take advantage of your CGM and finger-prick meter and do the test yourself. </p><p></p><p>If you do a google search for 'Rapilose 300ml 75g' then you'll find the solution that a number of people on this forum have used - it's about £10. </p><p>Also, a search on this forum for terms such as 'GTT', 'OGTT', 'Rapilose' will bring up some info.</p></blockquote><p></p>
[QUOTE="IncogKeto, post: 2596204, member: 556471"] In addition to the carbohydrate content, there are numerous other factors that can have a bearing on an individual's glucose response to a particular meal - such as activity level before/after and any possible residual effect from food intake earlier in the day. Fat and fibre content will modify the rate of absorption and protein will itself induce a release of insulin in addition to that caused by the carbohydrates. Taking the example from your CGM graph of the pizza that you had for dinner, your glucose response would be different depending on your choice of topping. Your peak glucose level on that occasion occurred after about two and a quarter hours but in theory you could have delayed it even further by adding more cheese to the pizza - even with the carbs remaining at 80g. If you're trying to establish how your body responds solely to carbohydrates then an Oral Glucose Tolerance Test may be of value to you since it attempts to minimise the influence of those other factors. The test is generally done in the morning with the patient in a fasted state (to ensure the maximum time since their previous meal) and they're instructed to remain seated throughout (to remove activity level from the equation). The drink contains only carbohydrate (ie no protein, fat or fibre) and because it is a standardised quantity it allows the patient's results to be compared against that of other research subjects. Rather than wasting your energy trying to talk an NHS worker into giving you the test, I'd suggest that you take advantage of your CGM and finger-prick meter and do the test yourself. If you do a google search for 'Rapilose 300ml 75g' then you'll find the solution that a number of people on this forum have used - it's about £10. Also, a search on this forum for terms such as 'GTT', 'OGTT', 'Rapilose' will bring up some info. [/QUOTE]
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