what metals do the human body need
Metals generally regarded as essential for human health in trace amounts include iron, zinc, copper, manganese, chromium, molybdenum and selenium. They are essential because they form an integral part of one or more enzymes involved in a metabolic or biochemical process.The primary role of such elements is as a catalyst, and only trace amounts are necessary for cellular function.here are other metals that have been shown to be essential for plants, and lower forms of animal life and even other mammals, but essentiality for humans has not been convincingly demonstrated. Such metals include arsenic, nickel and boron.