I use OptiMag 125 from Xymogen. I rely on my Naturopath for supplements that support the body vs laxatives that are foreign to the body. A good potassium is K+2Potassium from Design for Health. Lifestyle, organic food and exercises are important too. Unfortunately with all the chemicals sprayed on crops and in our environment they effect our digestive system in ways generations before us didn't have to worry about. Good luck, @farmersmith