Aa
A
A
A
Close
Heart Rhythm Community
12.1k Members
Avatar universal

Why tachycardic after eating carbs

I am trying to find out why my heart rate doubles after I eat carbohydrates — especially simple carbohydrates, and especially on an empty stomach.

My resting heart rate is 52 BPM. About thirty minutes to one hour after eating simple carbs on an empty stomach — sugar, white bread, candy bars, etc. — my heart rate jumps to 100 BPM, and my chest tingles.

I am 45, male, overweight. I have daily PVCs and Bradycardia with no symptoms. I have been diagnosed with lone atrial fibrillation. It has happened four times — each time lasting 6-20 hours — and always when exerting myself after eating — lifting weights, basketball, etc. I have learned to exercise in the mornings before I eat. Otherwise, my heart will flop like a fish.

My M.D. does not know why it occurs. My blood tests always come back normal. I am not diabetic and my cholesterol is low.

If I eat complex carbs, and/or small portions, my heart rate will not get too high. Maybe 75-80 BPM. I understand lifestyle changes will most likely correct or ease this problem, but I would like to know what causes it.

Any ideas?

Thank you!
1 Responses
Avatar universal
What you are experiencing is called postprandial tachycardia, and it is--in general--normal.  Digestion takes energy, and the heart's job is to produce oxygen for work.
Have an Answer?
Top Arrhythmias Answerers
1807132 tn?1318747197
Chicago, IL
1423357 tn?1511089042
Central, MA
Learn About Top Answerers
Didn't find the answer you were looking for?
Ask a question
Popular Resources
Are there grounds to recommend coffee consumption? Recent studies perk interest.
Salt in food can hurt your heart.
Get answers to your top questions about this common — but scary — symptom
How to know when chest pain may be a sign of something else
In You Can Prevent a Stroke, Dr. Joshua Yamamoto and Dr. Kristin Thomas help us understand what we can do to prevent a stroke.
Smoking substitute may not provide such a healthy swap, after all.