Jamieson Calcium Magnesium with Zinc maintains strong bones and teeth and helps prevent osteoporosis to reduce the risk of fractures later in life. This product may help reduce high blood pressure and play a role in relieving PMS symptoms. It also helps prevent insomnia, supports colon and is good for adolescents and post-menopausal women. The addition of zinc gluconate enhances the immune system, fights infections and supports prostate health. Together, magnesium and calcium support mutual absorption and utilization. The optimal two-to-one ratio of calcium to magnesium ensures maximum absorption and prevents adverse gastrointestinal effects.