Yes, I think there can be. After all, if you don't get back down to "normal for you" before you start your next meal, there will be something of a build up. Clearly, if you have a longish overnight fast, you should get a bit lower than in the breakfast-lunch interval. I think Jenny Ruhl on the blood sugar 101 site, criticises fasting blood sugar tests because these are the last to show raised levels.what i was really getting at was can there be a build up of carbs say over a few days?
Carbs won't stay for more than a couple of hours in the digestive system unless you have a serious digestive problem.+thanks NoCrbs4Me , what i was really getting at was can there be a build up of carbs say over a few days?
Just to clarify from what I said above, I suspect that the carbs (i.e. a well chewed slice of bread) will pass through your digestive system in a few hours, depending on a number of factors, but the resultant sugars will remain in your blood until you are able to process them. This is where the backlog is for diabetics, which can ultimately lead to blood sugar readings off the scale - unless of course you have just eaten a dozen sticky buns, in which case you might be able to achieve it in one go.how long do the carbs we consume last at longest in your body? just wondered if there was a cumulative effect on blood sugar levels from day to day.