BG drop

At 19.20 (2.5hours after a meal) my BG reading was 7.7 but an hour later it was 2.7 and I hadn't done any exercise in that hour. Any ideas why it dropped so rapidly please?

Hi Michele,

There are a few possibilities. If your meal was really high GI, then you may have already absorbed all the carbs you had for dinner, but your QA is still working with not enough carbs to use it up on without dropping your blood glucose.

If you have exercised previously in the day, or even the day before, then it is known that hypos can occur for up to 48 hours after that exercise, especially strenuous exercise.

Stress tends to send BGs higher, so if you suddenly relaxed, then your stress-induced insulin resistance may have disappeared and dropped your BGs as a result.

Alcohol can lead to hypos as the liver is occupied with breaking it down, and only once it has done that can it get on with its normal function.

And sometimes it just happens for no apparent reason, If it is happening regularly, then that is cause for concern, but if it is a once-off, then I wouldn't worry about it.

Thank you very much for your reply Warwick, I greatly appreciate all the information you have given. I will continue to monitor my levels and see if it happens again!