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More Info On Perchlorate In Infant Formula.. From The CDC...

Posted by on Apr. 8, 2009 at 1:18 PM
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This is part of the Exact Email I got from the CDC... More info coming after i email the FDA..


Please refer to the following information on CDCs study regarding perchlorate in infant formula:

Perchlorate is everywhere, in food, milk and drinking water.
* Perchlorate occurs naturally in the environment and is used in explosives, fireworks, road flares, and rocket motors.
* CDC studies have shown that everyone in the U.S. is exposed regularly to low levels of perchlorate.
* High levels of perchlorate can affect the thyroid gland, causing changes in how our organs function, especially in fetuses and young children.
* Studies are needed to explore the potential health effects of low level exposures to perchlorate.

CDCs study looked at the possibility that perchlorate is present in infant formula.
* Previous studies have found perchlorate in cows milk, largely due to exposure through feed grain.
* CDC tested perchlorate concentrations in commercially available four types of powdered infant formulas, including cows milk-based with lactose, soy-based, cows milk-based lactose-free, and elemental, which are made with synthetic amino acids.
* All of the powdered infant formulas tested contained perchlorate, with cows milk-based formula having a significantly higher concentration of perchlorate than the other types. 
* CDC researchers then used this information, along with estimates of baby weight at different ages and estimates of the amount of formula typically consumed, to determine several hypothetical exposure situations involving formula mixed with drinking water containing perchlorate.
* Finally, for each hypothetical situation CDC calculated how much perchlorate would need to be in water to cause the mixed formula to exceed the EPAs conservative estimate of the highest daily dose of perchlorate that sensitive persons can receive over a lifetime without experiencing an adverse effect.
  - EPA calls this estimate the perchlorate reference dose (RfD).
  - EPA defines the RfD as an estimate of the daily exposure that is likely to be without an appreciable risk of deleterious effects during a lifetime.
  - The RfD does NOT indicate the maximum safe dose.

In the hypothetical dosing scenarios described in CDC's paper, most infant formulas mixed with perchlorate-free water contained perchlorate at levels below the EPA reference dose.
* CDCs calculations showed that most of the hypothetical exposure situations devised from the scientific estimates produced perchlorate levels below the RfD.
* Some infants drinking cows milk-based powdered infant formulas with lactose or formulas mixed with water with perchlorate levels could potentially consume perchlorate at levels above the RfD.
* CDC scientists tested only a small number of samples from each of the formula types and manufacturers; results from so few samples cannot be generalized to entire brands of formula.  Nevertheless, the findings indicate that cows milk-based formulas likely contain more perchlorate than other formulas.

CDC recognizes the importance of meeting the nutritional needs of infants.
* Mothers breast milk is the best nutrition for a developing infant.
* The Food and Drug Administration requires infant formulas to contain iodine, which potentially can help to offset the effects of perchlorate on the thyroid.

This study is an important first step in understanding infants exposure to perchlorate.
* This study's results indicate that cow's milk may be the single most important contributor to the levels of perchlorate found in these formulas.
* The study raises questions of how much perchlorate might be absorbed by infants drinking the formula.
* CDC will next undertake research to measure the levels of perchlorate in infants urine.
* Studies are needed to explore the potential health effects of exposure to perchlorate, especially low levels of perchlorate over time.

Additional resources that you may find helpful include the following:

Frequently Asked Questions on Perchlorates

Perchlorate Fact Sheet

For Consumers: Information about Perchlorate

Perchlorate and Drinking Water

by on Apr. 8, 2009 at 1:18 PM
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