"Liquid Cal/Mag/Zinc by Trace Minerals is a complementary blend of premium forms of calcium, magnesium, and zinc that has been supercharged with Ionic Trace Minerals to help support the assimilation and absorption of these minerals in the body. We ve also included vitamin D to create a formula that helps provide complete nutrition to maintain bone, muscle, and connective tissue health. Shake Vigorously. Take 1 to 2 tbsp. daily (one capful = 2 tbsp.), to top off or fully supplement your diet. As this is a highly concentrated product, we recommend starting with 1 tbsp. and increase as needed, ideally spread throughout the day. Mix into or with a large glass of liquid for the best isotonic balance. Excess magnesium may cause a laxative effect. Rinse cap after each use. Refrigerate After Opening.