From the Manufacturer:
EZorb Calcium is made of anhydrous l-aspartic acid chelates of calcium, also referred to as anhydrous calcium aspartate.
Anhydrous calcium aspartate is the most stable form of calcium aspartate. It is created by binding molecules of l-aspartic acids to atoms of calcium. Laboratory tests show that anhydrous calcium aspartate is 6 times more stable than other forms of calcium aspartate. Among various forms of calcium aspartate, anhydrous calcium aspartate stands out with an unprecedented 92% absorption rate.
L-aspartic acid is one of the important amino acids that make up the human body. When bonded to calcium, l-aspartic acids serve as body guards to protect calcium against attacks from inorganic compounds regularly found in foodstuffs. They also function as transport media to deliver calcium to the destination where calcium consumption takes place.
The raw materials of EZorb are extracted from plants and vegetables.