Can powder protein drinks cause heart palpitations?

Condition analysis:
No. Even a large amount of protein shakes should not, assuming that your diet is otherwise complete. Remember that pure whey protein shakes are not a replacement for a meal, only a supplement and should not be used as a sole source of nutrition. Be sure to consume other sources of food.

However; if you have an existing heart condition, powders such as whey protein CAN cause tachycardia (not immediately though).

Instructions:
1) Soy:
You can reduce your cholesterol by as much as 10% when you replace other dietary protein (such as red meat) with soy.

2) Oranges:
A great benefit comes when you consume oranges, which are known to protect the heart, as well as reduce the risk of cardiovascular disease, high blood pressure and stroke. Oranges are packed with folate, which plays a major role in helping you avoid cardiovascular disease. Try eating an orange on a daily basis or start your morning off with a glass of orange juice, which helps elevate ‘good cholesterol’ levels. You can also significantly reduce blood pressure by drinking one to two glasses of orange juice per day. The fruit also helps protect you against a stroke.