Potassium and other healthy minerals contained in marijuana muscle

Potassium ion is necessary for the function of all living cells, and is thus present in all plant and animal tissues. It is found in especially high concentrations in plant cells, and it is most highly concentrated in fruits.

You sweat out potassium. With hard training you can sweat out several pounds in one workout. This is why drinks like Gatoraid have 30mg + per serving.