what's the easiest way to make sure I get as much potasium as I need. I notice that potasium and other multi vitamins at the store usually only supplies about 3% of the daily requirement.

Also, are there any other vitamins or minerals I should be concerned about that the daily requiremants don't get met by the average multi vitamin.

The vitamin I'm taking right now is basically a walmart brand I believe but I checked the label and it seemed to be identical to a lot of the name brands that were also on the shelf.

thanks!