10 doctors weighed in:
Why does my blood sugar spike after morning workouts?
10 doctors weighed in

Dr. Alvin Mathew
Internal Medicine
4 doctors agree
In brief: Hormones
There are stress hormones and adrenalines that come out when you exercise.
They counteract the effect of Insulin making it less effective, thus your blood sugar goes up. This is a natural response. Eventually, the blood sugar should come down as the Insulin become more sensitive again.

In brief: Hormones
There are stress hormones and adrenalines that come out when you exercise.
They counteract the effect of Insulin making it less effective, thus your blood sugar goes up. This is a natural response. Eventually, the blood sugar should come down as the Insulin become more sensitive again.
Dr. Alvin Mathew
Dr. Alvin Mathew
Thank
Dr. Cayce Jehaimi
Pediatrics - Endocrinology
2 doctors agree
In brief: Reactive hyperglycem
Its actually common for diabetics (type i particularly) to have increased glucose reading during or right after physcial activity.
This phenomon is commonly known as reactive hyperglycemia and is due to the counter regulatory hormone system (cortisol and growth hormone) that get activated during stress or physical activity. You should watch for low bs however during the few hours after cessation.

In brief: Reactive hyperglycem
Its actually common for diabetics (type i particularly) to have increased glucose reading during or right after physcial activity.
This phenomon is commonly known as reactive hyperglycemia and is due to the counter regulatory hormone system (cortisol and growth hormone) that get activated during stress or physical activity. You should watch for low bs however during the few hours after cessation.
Dr. Cayce Jehaimi
Dr. Cayce Jehaimi
Thank
Dr. Larry Deeb
Pediatrics
1 doctor agrees
In brief: Sugar from the liver
When you exercise it frequently lowers glucose, but many are surprised to see the glucose rise.
This especially happens if the glucose is somewhat high when you start to exercise. Also the great american breakfast is frequently carbohydrate rich and glucose rises are a problem anyway.

In brief: Sugar from the liver
When you exercise it frequently lowers glucose, but many are surprised to see the glucose rise.
This especially happens if the glucose is somewhat high when you start to exercise. Also the great american breakfast is frequently carbohydrate rich and glucose rises are a problem anyway.
Dr. Larry Deeb
Dr. Larry Deeb
Thank
Dr. Vered Lewy-Weiss
Pediatrics - Endocrinology
In brief: Hormones
During exercise, your body releases growth hormone, adrenaline, and cortisol.
These hormones raise blood sugar. However, given the benefit of increasing muscle Insulin sensitivity, it's very common to see tighter control or low blood sugars for hours following exercise despite the transient high during or right after exercise.

In brief: Hormones
During exercise, your body releases growth hormone, adrenaline, and cortisol.
These hormones raise blood sugar. However, given the benefit of increasing muscle Insulin sensitivity, it's very common to see tighter control or low blood sugars for hours following exercise despite the transient high during or right after exercise.
Dr. Vered Lewy-Weiss
Dr. Vered Lewy-Weiss
Thank
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