Nov 09, 2015u00a0u00b7 magnesium is bound to all the amino acids, as they each play an important part in the absorption, integration, and utilization within the cell. magnesium in food is always found with amino acids: alanine, arginine, aspartic acid, glutamic acid, glycine, histidine, isoleucine, leucine, methionine, serine, tyrosine, and valine. The best forms of magnesium magnesium citrate u2014 magnesium citrate is the most popular magnesium supplement, probably because it is inexpensive and easily absorbed. since citric acid is a mild laxative, magnesium citrate functions as a constipation aid as well as a u2026 Magnesium citrate is best taken when your stomach is empty with a glass of juice or water to help absorption. 2. magnesium chloride. magnesium chloride contains only around 12% of elemental magnesium however it is absorbed by the body very well and is considered to be among the best magnesium supplements to detoxify the tissues and cells. Sep 03, 2018u00a0u00b7 magnesium is a mineral found in the earth, sea, plants, animals and humans. about 60% of the magnesium in your body is found in bone, while the rest is in muscles, soft tissues and fluids, including blood (1). in fact, every cell in your body contains it and needs it to function.