The citrate salt of calcium has been documented to be well absorbed and utilized by the body. <a href="http://www.lef.org/newshop/items/item00412.html">http://www.lef.org/newshop/items/item00412.html</a> Se-methylselenocysteine Se-methylselenocysteine (SeMC) is a naturally occurring seleno-amino acid that is synthesized by plants such as garlic and broccoli.