My book on supplements says that "in larger amounts it's a laxative in products like milk of magnesia and epsom salts." Try it for a week to see how you react. It seems to me if we need this recommended amount (400 mg per day) we should be able to tolerate it. As for me, I haven't had any problems while taking it but, believe me, I would rather make an extra trip or two to the bathroom if it means a good night's sleep!!! Now, with all of this said, I DO think that we HAVE to pay attention to other things we eat that could keep us awake at night. I do not consume caffeine after noon time. I stay away from chocolate from the afternoon on. I am diabetic so I also go light on sweets and carbs in the evening. I think the combination of adding the magnesium and watching what I put into my body has been key to me getting good sleep. By the way, before I started taking the Magnesium Citrate I had a terrible time with my left leg jumping all night. I thought it was related to some spinal stenosis that I have but I am convinced now that it was all nerve related and probably due to a deficiency of magnesium. I am wondering if all of the folks who suffer from restless leg syndrome might be helped by taking Magnesium Citrate. There are several other forms of magnesium that you can buy but the ones that are absorbed the best are the Magnesium Citrate, Magnesium Aspartate, Magnesium Glycinate. Here is a link to a very good article on this supplement.
http://www.nutritionalsupplementscen...umcitrate.html