News How much potassium do you need per day? The amount may surprise you. May 12, 2023May 12, 2023Delaney NothaftComments Off on How much potassium do you need per day? The amount may surprise you. Potassium is vital for the heart, and an imbalance can even lead to life-threatening events. You need between 2600-3400 mg of potassium daily.