The thousands contain abundant proteins, vitamins, calcium, iron, magnesium and zinc. Also, thousands of proteins are full proteins that contain not only the eight amino acids necessary for the human body, but are also close to human needs and more easily absorbed by the human body. A thousand pieces of egg phosphorus can be removed from cholesterol attached to the vascular wall, preventing vascular hardening, preventing cardiovascular disease and protecting the heart; in addition, a thousand pieces of minerals are extremely beneficial for the bone growth of children and the elderly. So, thousands of young and old。