Heavy metals such as mercury, lead. Cadmium, nickel, cobalt, copper, etc., can displace vital trace elements and promote growth of fungi, allergies and weaken the immune system. Chronic heavy metal poisoning are common and are underestimated. Heavy metals may be involved in many diseases and blocks healing. Allergies, asthma, Parkinson's, Alzheimer's, MS, schizophrenia, panic Attak, learning disabilities, depression, rheumatism, MCS, gastritis, Bullemie, Candida, colitis etc. worsened by heavy metals, if not actually caused.