Minerals are essential to maintaining a healthy body. Adequate mineral levels in our system are supplied by a well-balanced diet. Nature's Harbor Calcium Magnesium Zinc combines 3 essential minerals into one supplement. Calcium is necessary to build and maintain strong healthy bones. Adequate levels of Calcium in the body can reduce the risk for Osteoporosis. Magnesium also aids in the building of strong, healthy bones. It is also involved in normal muscle and nerve function, keeping heart rhythm steady, and supporting a healthy immune system. Zinc is an essential mineral that is found in almost every cell. It is essential for normal growth and development. Zinc supports a healthy immune system, is needed for wound healing, stimulates the activity of enzymes, and is essential for normal prostate gland function.