Magnesium is an extremely essential element for all plant and animal life, as it aids in energy and protein production, metabolism, proper muscle function (critical for heart health), supports a healthy immune system, serotonin production, and the nervous system. It is required for more than 300 biochemical reactions within the body. It calms nerves and anxiety, regulates other minerals (Calcium, Potassium, Sodium). Vital for prevention of migraine headaches, osteoporosis, and constipation. 8oz Bottle Serving Size: 2.5 ml (Approx. .5 tsp) Servings Per Container: 96