Some people have palpitations after heavy meals rich in carbohydrates, sugar, or fat. Sometimes, eating foods with a lot of monosodium glutamate (MSG), nitrates, or sodium can bring them on, too. If you have heart palpitations after eating certain foods, it could be due to food sensitivity.
While GERD or acid reflux is unlikely to cause heart palpitations directly, symptoms associated with GERD may trigger palpitations in some people.
High-sodium foods can cause palpitations, too.