Immunoglobulins are very complex proteins whose function is to provide various types of immunity.
However, the concentration is much higher in colostrum, the first milk secreted after birth. Milk calcium, sometimes called milk mineral complex or whey minerals, is a concentrated source of calcium and other minerals derived from milk. It is generally obtained as an isolated fraction of whey. Milk calcium is becoming an increasingly important source of calcium supplementation in the food industry. It offers a unique combination of minerals important for proper bone growth including calcium, phosphorus, magnesium and zinc.