5 doctors weighed in:

My dad bg was 103 before bed 14 hours later no food it was 153 only thing he had was coffee before checking how come it spiked like that?

5 doctors weighed in
Dr. James Chu
Internal Medicine - Endocrinology
2 doctors agree

In brief: Liver produces sugar

The liver breaks down glycogen to glucose overnight when one is asleep, in order to feed the body (when not eating).
In people with type 2 diabetes, this liver production of glucose is exaggerated, and often times leads to elevated fasting morning glucose levels, which may actually be higher than the readings from the nights before. There are medications that can help to control this.

In brief: Liver produces sugar

The liver breaks down glycogen to glucose overnight when one is asleep, in order to feed the body (when not eating).
In people with type 2 diabetes, this liver production of glucose is exaggerated, and often times leads to elevated fasting morning glucose levels, which may actually be higher than the readings from the nights before. There are medications that can help to control this.
Dr. James Chu
Dr. James Chu
Thank
Dr. Douglas Fronzaglia
Internal Medicine - Geriatrics
1 doctor agrees

In brief: Metabolism

Food is still being digested as we sleep and can cause blood sugar to increase into the morning hours.

In brief: Metabolism

Food is still being digested as we sleep and can cause blood sugar to increase into the morning hours.
Dr. Douglas Fronzaglia
Dr. Douglas Fronzaglia
Thank
Get help from a real doctor now
Dr. Jack Hinkle
Board Certified,
384K people helped
Continue
108,000 doctors available
Read more answers from doctors