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FDA finds more perchlorate in more food, especially bologna, salami and rice cereal

Tom Neltner, J.D.is Chemicals Policy Director and Maricel Maffini, Ph.D., Consultant

Last month, the Food and Drug Administration’s (FDA) scientists published a study showing significant increases in perchlorate contamination in food sampled from 2008 and 2012 compared to levels sampled from 2003 to 2006. The amount of perchlorate infants and toddlers eat went up 34% and 23% respectively. Virtually all types of food had measurable levels of perchlorate, up from 74%. These increases are important because perchlorate threatens fetal and child brain development. As we noted last month, one in five pregnant women are already at great risk from any perchlorate exposure. The FDA study doesn’t explain the increase in perchlorate contamination. Yet, it’s important to note that there is one known factor that did change in this time period: FDA allowed perchlorate to be added to plastic packaging.

Reported perchlorate levels in food varied widely, suggesting that how the food was processed may have made a significant difference. The increase in three foods jumped out to me:

  • Bologna: At a shocking 1,557 micrograms of perchlorate per kilogram (µg/kg), this lunchmeat had by far the highest levels. Another sample had the fifth highest levels at 395 µg/kg. Yet a quarter of the other bologna samples had no measurable perchlorate. Previously, FDA reported levels below 10 µg/kg.
  • Salami: One sample had 686 µg/kg giving it a third ranking. Other samples showed much lower levels and six of the 20 had no detectable levels of perchlorate. Previously, FDA reported levels below 7 µg/kg.
  • Rice Cereal for Babies: Among baby foods, prepared dry rice cereal had the two highest levels with 173 and 98 µg/kg. Yet, 15 of the 20 samples had non-detectable levels of perchlorate. Previously, FDA reported levels less than 1 µg/kg.

The increases are disturbing in light of the threat posed by perchlorate to children’s brain development and the emerging science showing the risk at lower levels is greater than thought a decade ago. The risk is particularly significant for children in those families loyal to those brands with high levels. Unfortunately, FDA’s study does not identify the brand of food tested. Read More »

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