I actually am embracing the Protein drinks...I have found that I can switch up the flavors by adding either Peanut Butter powder, or a drop in Water flavor packet and that has really broadened the horizons.

I'm doing this now pre-surgery twice a day at least three times a week.

I've noticed that about 10 minutes after I finish my shake my heart feels fluttery for about a minute then it goes back to normal.

Anyone else experience this?

Sent from my iPhone using the BariatricPal App

Nope. Unless you are just excited about drinking them? There's nothing in them that would produce that effect. Carb shock, as in abruptly stopping eating carbs, may produce them though.

check the sugar substitute in it. there are some that give me a fluttery feeling.

Are you staying hydrated? Sometimes dehydration (even a just a little) that causes palpitations and it could just be a coincidence that your heart races after drinking a protein shake.