Modern food packaging has transformed our diets for the better in many ways—fresh-tasting canned tomatoes in January and low rates of food-borne disease are not to be scoffed at. But increasing scrutiny of the materials in the cans, bottles, and vacuum packs you bring back from the store have raised fears that certain chemicals—notably, those like bisphenol A (BPA) that can mimic hormones such as estrogen—may be prompting early puberty in children, among other health problems. Last year, the National Resource Defense Council sued the FDA demanding that the agency respond to a petition to ban BPA in food packaging. Yesterday, the FDA announced that it would not be banning BPA, saying that the science linking the chemical to health risks is not yet convincing. But some companies, responding to consumer desires, are already moving to remove it from their packaging.
A study published this week in the journal Pediatrics found a link between levels of bisphenol-A in pregnant moms and behavioral problems such as anxiety and hyperactivity in their daughters at age 3. No such effects were seen in boys. BPA has estrogen-like activity and can lead to developmental and behavioral problems in animals—but whether or not it does the same in humans, and at what dosages, is a subject of considerable debate. This study won’t settle the debate but highlights the need to answer some basic questions about BPA that remain surprisingly unclear.
Cleanliness is a virtue, but it’s possible to overdo it–that’s the message from a new study, which found that antibacterial soap may be doing teenagers more harm than good. The study found that the more teenagers are exposed to the antibiotic triclosan, the more likely they are to suffer from allergies and hayfever.
The researchers also looked at the effects of the widely used plastic chemical Bisphenol A (BPA), and found signs that teenagers with more BPA exposure may have immune system problems. The study was the first of its kind to examine the link between these two chemicals and immune dysfunction, which had only previously been studied in animals. Both chemicals are endocrine-disruptors, which means they may mimic or interfere with the body’s natural hormones.
“Many research studies show an association between exposure to environmental chemicals and different disease outcomes. There is a lack of data, however, examining whether exposure to these chemicals may affect our immune systems,” Erin Rees Clayton, a researcher from the University of Michigan school of public health said in an email. [The Montreal Gazette]