After heavy workouts on certian muscle groups, my muscles will lock (bicepsand chest), almost like a spasm. My girls mom is a nurse and she said im low on potassium. So i bought a pot. supplement. I had mentioned this to my buddy, who is the gym owner, and has competed for many years. I trust what he tells me, however this sounds strange. He said to be very careful with potassium because your body cant process it and it can kill you. He said people have used this b4 competitions in excess and have died.. Is this true? The bottle does say it helps the bodys water balance. Thanks guys..