What could result from excess build-up

Potassium is an essential electrolyte, which is a mineral that your body needs to function correctly. This mineral is particularly important for your nerves and muscles. All of your muscles need potassium, including your heart. Healthy kidneys flush excess potassium out of your body.

While potassium is indeed important, getting too much can be just as bad or worse than not getting enough of the nutrient. Hyperkalemia is a condition that occurs when your blood contains too much potassium.

answer; training;