With the increased use of calcium supplements to ward off osteoporosis, a common disease that often occurs during menopause and is marked by loss of bone density, a group of researchers reexamined the varying amounts of lead content among the many brands available. Although their findings indicated the lead levels are safe when taking recommended dosages of calcium, overuse and misuse of the supplements can increase a person s exposure to dangerous levels of lead. Although the risk of lead exposure from calcium supplements has been widely known for almost two decades, lead levels in the supplement are deemed at safe levels if taking the proper dosage. According to the researchers, acceptable levels of lead exposure should not exceed 6 micrograms per day. Long-term exposure to lead can lead to damage to the central nervous system, the blood, and vitamin D metabolism.
Children are especially sensitive to the chronic effects of lead exposure.
The researchers asserted that patients who switch brands may inadvertently expose themselves to higher levels of lead. In an editorial in the same issue of JAMA, a physician and medical consultant for many calcium suppliers criticized the researchers for instigating panic about calcium supplements. In his editorial, Dr. Robert Heaney states that stopping calcium supplements if far more dangerous to a person s health than the low levels of lead. For more information on this, consult your physician, or Ask A Nurse . Please take the time to read our disclaimer .