I have always read that potasium is good for energy but before you do add any potasium supplements, check if u have any prescriptions or check in fitday if you are close to your required daily fda amount. Ask your doctor.

Like for example, my bc pills helps with my potasium so I need not bother take an additional supplement. Here's a link about Potasium: http://members.tripod.com/~charles_W/arthritis11.html