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Message: <blockquote data-quote="Lamont D" data-source="post: 2625702" data-attributes="member: 85785">Have you heard of a glucose tolerance test?Tolerance to glucose, carbs, sugars,  and even protein and fats (in very small amounts) as [USER=401801]@JoKalsbeek[/USER] has said will impact on your blood glucose levels. It all depends on how tolerant you are to them, will effect them!We are all different!Like me, I have a very weak first phase insulin response. That means I don't have enough insulin initially to stop my blood glucose levels going abnormally high after carbs, and of course how much carbs will skew it!You may not have this, or you are insulin resistant, . It depends on the individual.My spike after carbs is roughly 45 minutes, others will be around this or longer or shorter.Only experience and experimenting with food will give you an idea which foods to either, stay away from, reduce portion size, or have and enjoy!In the end, it's about preventing high spikes, that will improve your diabetic levels.Two hours from first bite your pre meal reading gives you baselines to let you decide which foods you can tolerate. Over two mmols, and something in that meal is causing this reading. But if it is within, then it's good!However, sorry, not trying to confuse, but a few, have found that their spikes can be longer than two hours. But only by testing can you find out!</blockquote>

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