I have been using magnesium supplements for almost 7 months. I first started taking them when I started low carbing and had constipation issues. The first bottle I used seemed to work really well and the bottle I am using now ( magnesium oxide) doesn't seem to have the same effect. I know there are different types of magnesium supplements and I am wondering if that could be the issue. I wish I knew what I was taking at first so I could go back to it. So my question is does anyone know what the difference between Magnesium Oxide and Magesium Citrate is?

Thanks for any help you can give me.