Lead is No Laughing Matter
by Sangeeta Shah, M.D.
The dangers of lead are indeed a threat to growing children.
It is the number one environmental hazard they face, but it can
play havoc with adults as well. Although leaded house paint is
a principal danger, food and drink are also important ways that
lead gets into the body. What's more, other nutrients in the
diet can help determine how toxic that lead will be.
Measurements of lead in our bones show that humans living today
have approximately 1400 times more lead as our ancestors had
400 years ago. EDTA is the best chelating agent for lead and
was shown to reduce the incidence of cancer by 90% in a study
done in Switzerland. EDTA can also chelate iron, copper, arsenic,
cadmium and aluminum, and other metal ions that are implicated
in causing disease and accelerating the process of aging.
When this tasteless, odorless mineral enters the body, it enters
the red blood cells, where it can interfere with the manufacture
of hemoglobin, the oxygen carrying substance in the red blood
cells. Lead also can enter the brain, and it freely passes through
the placenta to a developing fetus. The list of lead's health
effects includes kidney damage, harm to the nervous system, high
blood pressure, growth retardation and a permanent impairment
of mental abilities. Lead is more toxic during periods of rapid
growth, pregnancy and childhood.
Lead is found everywhere, so it's not unusual for the body to
contain small amounts. In fact, our system can eliminate this
mineral, albeit slowly. Health problems begin when the intake
of lead greatly exceeds the body's handling abilities.
Let's not forget lead cry stall that you'll find in your crystal
decanters and wine glasses. Pottery glazes and paints in ceramic
wares containing lead can also contaminate foods. Oregon and
Washington state have recently warned consumers against using
ceramic pots and dishes imported from Mexico and Latin America
for cooking and serving foods. The FDA requires that ceramics
that release lead in high amounts carry a permanent label warning
against food use. Pottery may also be high in lead. If in doubt,
use pottery for a decorative purpose only.
Most commercial manufacturers take steps to keep lead out of
their wares, and to keep it from leaching. But if you buy goods
abroad, particularly in the developing world, or even from small
local potters in this country, you may get dishes that release
lead, and some imports evade the regulation. Antique glass and
pottery may also be high in lead. If in doubt, use pottery for
decorative purposes only.
Homes built before 1978 often contain lead paint. If you are
thinking of remodeling, reduce lead hazards with safe work practices.
Keep pregnant women, children and pets out of the work area.
Control lead dust. Call 1-800-597-LEAD for lead safe work practices.
Don't eat, smoke, or drink in the work area. Wash your hands
and face before taking a break. Wet sweep and wet mop the work
area after you are done working. Take a shower after you finish
work. Wash your clothes apart from other laundry.
Often overlooked about the dangers of lead is the role played
by the other nutrients in the diet. Two in particular, calcium
and iron, can decrease the amount of dietary lead the body will
absorb.
Of course, the best method of ridding your body of these toxic
metals, including lead, is through intravenous chelation therapy.
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