I am trying to get a better handle on how my body reacts to different foods and I do not understand what happened today. Prior to lunch, my blood glucose was 110. I found some leftovers in the icebox and they became lunch. A serving of boiled cocktail shrimp, a serving of coleslaw, and three whole wheat crackers. An hour later my BG had jumped to 155. The lettice in the fridge was a bit past its prime, so I didn't get my usual salad but the 45 point jump? Help me understand how this works. All new to me and my Doctor is not any help at all.
I hate to tell you this, but the same food can have a different effect on a different day. Many things can affect your glucose levels like lack of sleep, amount of exercise, ambient temperature, etc. So if you were to eat the same thing on a different day you might get a different result. To really find out how food affects you, you have to repeat the experiment a couple of times.
Coleslaw, especially if commercially purchased, frequently has some sugar in it, and of course the crackers were basically all carb. You also didn't mention if there was cocktail sauce on the shrimp; if so, it probably had some corn syrup in it.
It's not unusual for blood glucose to rise after eating. To test your blood sugar after eating, you should test at the two-hour mark, not the one hour. And you start the timing from when you BEGIN eating, not when you finish. A good goal for diabetics is to be at or less than 160 at the two hour mark. Sure, lower is even better, but may be hard to do if you're not on insulin and, even if you are on insulin, lower at the 2-hour mark may cause you to go TOO low at the 3-hour mark.
AND...what Cora said! All those things are true, too. Are we having fun yet???