Natural Mineral Supplement™ is a unique truly chelated natural mineral supplement containing 8 minerals: Iron, Magnesium, Zinc, Selenium, Copper, Manganese, Chromium, and Boron. Minerals must be in a bio-available form for your body to receive the benefits from them. In order for them to be bio-available, like food, mineral supplements must be bonded to a protein thru a process called chelation.