Supplementing with Magnesium Magnesium, an abundant mineral in the body, is found in various whole foods such as vegetables, nuts & seeds and legumes. Studies suggest that many people do not get the daily recommended value of this essential mineral. Magnesium Citrate is a popular form of Magnesium that is better absorbed by the body and gentle on sensitive stomachs. Piping Rock Magnesium Citrate delivers 400 mg of Magnesium Citrate per serving, an optimal form of Magnesium in coated caplets. It’s Gluten Free, non-GMO, and vegetarian-friendly, the best-suited formula for a trusted wellness experience!