One common piece of advice to combat cramping is to increase potassium intake. But when I looked at potassium supplements at the store today I noticed that one pill is a mere 2% of the recommended daily allowance. I can't imagine that increasing my potassium intake by such a tiny percentage is really going to make a difference. It seems like a waste of money when I can get so much more potassium in a wide variety of readily available food. Thoughts?