EDTA is a chelating agent commonly used to remove toxic metals or as part of a chelation therapy program. EDTA binds or "chelates" to undesirable minerals like calcium found in arterial plaque and has long been used to treat heavy metal poisoning. Ingredients: EDTA Oral Chelation 500 mgSuggested Use: Take 2 to 4 caps (1000 mg to 2000 mg) of EDTA daily with a good multi vitamin and mineral supplement.