1. CPP addition to promoting calcium absorption, but also the promotion of iron, zinc and other divalent mineral nutrient absorption. Iron and zinc are in addition to the Chinese people most vulnerable to the lack of calcium minerals, if simple, excessive calcium, iron and zinc absorption would have been affected. If CPP added to fortified with calcium, iron, zinc and nutritional foods or nutraceuticals, then not only can increase the absorption of calcium, but can also increase the absorption and utilization of iron and zinc, which effectively overcome the general calcium supplements iron, the potential adverse effects of zinc uptake, it is any other calcium supplements do not have the feature. 2. Active transport of vitamin D may promote upper small intestine may be saturated absorption of calcium, vitamin D and calcium intake influence of age by; CPP on the lower part of the small intestine insatiable passive diffusion absorption, this absorption regardless of age and calcium intake the impact of changes, and passive diffusion of calcium absorption is much larger than the active transport absorption. CPP product also has good stability in dry and dark conditions shelf life of up to 18 months or more. After adding to the product, in an acidic to neutral range have good stability, resistant to 120 degrees, the high temperature for 30 minutes. Under alkaline conditions, poor stability, with the heating temperature increase and prolonged heat, dephosphorylation base reaction will increase, CPP's function will be affected. Under normal conditions of use, the structure and function of the CPP are stable. 3. Strengthening VD in the diet can increase the absorption of calcium, but excessive intake will VD kidney and bone cause some harm. But if reinforced calcium in the diet while adding a certain amount of CPP, will enable the intestinal calcium kept in a dissolved state, thus effectively promote calcium absorption and utilization, and the CPP from the milk protein, even if not excessive taking the body will produce any side effects. Additionally, CPP has a wide pH range complete dissolution characteristics, can withstand high-temperature treatment, has good stability, CPP when added to foods with a low amount of efficient characteristics, CPP added to maintain the original article flavor and taste. Edge piece of calcium, the composition of calcium carbonate (the highest content), containing vitamin D (the body's absorption of calcium ions carrier), absorption