2 doctors weighed in:
Can eating too much sugar cause rapid heartbeat?
2 doctors weighed in

Dr. Liviu Klein
Internal Medicine - Cardiology
In brief: Unlikely
It may cause high blood sugar.

In brief: Unlikely
It may cause high blood sugar.
Dr. Liviu Klein
Dr. Liviu Klein
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Dr. Louis Grenzer
Internal Medicine - Cardiology
In brief: Possibly
It is often hard to be certain what causes fast heart beating.
If you drink soda with a lot of sugar, it could be the caffeine and not the sugar for instance. Sometimes in early diabetes the blood sugar actually drops after eating sugar and a low blood sugar can definitely cause tachycardia. There may also be other yet unknown mechanisms for how sugar might cause fast heart beating.

In brief: Possibly
It is often hard to be certain what causes fast heart beating.
If you drink soda with a lot of sugar, it could be the caffeine and not the sugar for instance. Sometimes in early diabetes the blood sugar actually drops after eating sugar and a low blood sugar can definitely cause tachycardia. There may also be other yet unknown mechanisms for how sugar might cause fast heart beating.
Dr. Louis Grenzer
Dr. Louis Grenzer
Thank
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