When
thinking about fluoride exposure and its sources, most people think
about fluoride in the water supply. But many do not realize that
fluoride is also present in the food supply since produce is sprayed
with pesticides that contain fluoride.
Fluoride is being added to foods through the use of pesticides that
contain fluoride. The most common fluoridated pesticide in the United
States is cryolite –a white or colorless mineral made up of fluoride,
sodium and aluminum in crystal form. The Environmental Protection Agency
currently allows up to 7 parts per million of fluoride on more than 30
fruits and vegetables that are treated with cryolite. They are:
apricots, beets, blackberries, broccoli, brussel sprouts, cabbage,
cauliflower, citrus fruits, collards, cranberries, cucumbers, eggplants,
grapes, kale, lettuce, melons, nectarines, peaches, peppers, plums,
pumpkins, radishes, raspberries, squash, strawberries, tomatoes and
turnip.
One food in particular, grapes, has long been grown using cryolite,
using the trade name Kryocide. It is used to fight against leaf-eating
pests. Cryolite is applied as dusts, granulars or powders and is applied
by ground or aerial spray. It is mostly used on California grapes,
potatoes and citrus. Despite cryolites’ use over the past 50 years,
insects have not built up a resistance to it, so it is a fundamental
pesticide for many growers.
Because cryolite is easily absorbed into the crops that it is sprayed
on, people who eat this produce are ingesting an unknown amount of
fluoride. And since wine is made from grapes, it is yet another hidden
source of fluoride exposure. According to
NaturalNews.com,
“Cryolite contains aluminofluoride ions that shed fluoride ions, which
then pass through the blood-brain barrier and contaminate brain tissue.”
Two Russian studies, from 1977 and 1969 respectively, show evidence
to support that workers exposed to fluoride-contaminated compounds
experienced negative affects to their reproductive function. Men working
in the cryolite industry for 10 to 25 years and who also had skeletal
fluorosis – a bone disease caused by excessive consumption of fluoride
—demonstrated a decrease in circulating testosterone. Women whose jobs
heavily exposed them to superphosphates, used mainly as a fertilizer,
experienced an increase in menstrual irregularities and genital
irritation, as compared to non-exposed women.
It may come as a surprise that fluoride is even present in some
organic produce. The National Organic Standards (NOS) allow the use of
sodium fluoride in organic agriculture. Even though the NOS states that
organic produce growers shall not use “natural poisons such as arsenic
or lead salts that have long-term effects and persist in the
environment” it still allows the use of fluoride, which is
non-degradable and accumulates in humans, soil, plants and wildlife.
One research study found that almost all food contains some amount of
fluoride since “plants take it up from the soil and from the air. From
the soil, fluoride is transmitted through fine hair rootlets into the
stems, and some reaches the leaves.”
Another study that analyzed the typical North American diet found
that it dishes out about 1.8 milligrams of fluoride each day, which is
almost twice the amount of fluoride delivered from drinking one liter of
fluoridated water. When we go the extra mile to seek out organic foods
in order to avoid pesticides, we don’t expect to get an extra dose of
fluoride.