• Teens & Bisphenol A: Diet Change Doesn't Limit Exposure

      Adolescents who created real-world diets attempting to avoid exposure to bisphenol A, or BPA, for 7 days experienced no change in urinary BPA levels and reported difficulty in avoiding the endocrine-disrupting chemical, according to findings published in BMJ Open.

      • “Based on our evidence, it is extremely difficult to reduce one’s own exposure to BPA by actively trying to avoid known sources,” Lorna Harries, PhD, associate professor in molecular genetics at the College of Life and Environmental Sciences at the University of Exeter, United Kingdom, told Endocrine Today. “Our study indicates that the control over exposure to BPA currently does not lie with the consumer. At present, the ubiquitous nature of BPA in our environment and inadequacies in current labeling practices mean that it is very difficult to identify BPA-free foods.”

      • Harris and colleagues analyzed data from 94 adolescents aged 17-19 recruited from six schools in Exeter, England. Working with the researchers, the students designed real-world diets aimed at reducing consumption of BPA. Students designed all materials, including study protocols, food diaries, lifestyle questionnaires and were asked to record daily diet details and associated packaging for seven days. BPA results were expressed as BPA-to-creatinine ratio.
      • Within the cohort, 86% of participants had at least trace amounts of urinary BPA.

      Researchers did not observe any changes in urinary BPA levels between visits, with results persisting after adjusting for creatinine levels. There was no association between change in urinary BPA and BPA risk score.

      • “Participants were unable to achieve a reduction in their urinary BPA over the 7-day trial period, despite good compliance to supplied guidelines,” the researchers wrote. “Avoidance of BPA was not easily achieved on an individual level in our study population, with qualitative analysis indicating that participants experienced feelings of restriction and difficulties in sourcing BPA-free food due to the inadequate labeling of foods and food packaging. This suggests that the intervention would be difficult to sustain in the longer term.”

      "Diet intervention fails to reduce ‘ubiquitous’ BPA exposure for teens," Endocrine Today, 6 February 2018, https://www.healio.com/endocrinology...sure-for-teens

      This article was originally published in forum thread: Teens & Bisphenol A: Diet Changes Doesn't Limit Exposure
      Comments 1 Comment
      1. Re-Ride's Avatar
        Re-Ride -
        The participants experienced difficulty in avoiding BPA not "because of inadequate labeling of packaging" but rather, owing to the fact that safety and sanitation practice is inextricably linked to modern mass food production and distribution.

        Beef and poultry can in theory be sold in reusable stainless or glass packaging however the increased costs for transportation alone would be phenomenal. SUV's for everyone in the burbs while the metro quadruples capacity for people plus their deposit containers. How about a return to the era of brown paper and the corner butcher shop? Highly workable with a return to 1920's population levels and a stable dollar allowing everyone the luxury of time to stand in line.

        It's easy to make BPA-free plastics but where's the proof that they are any safer? Studies like this are part of the illusion that humanity can regulate or more currently de-regulate to avoid the inevitable consequence of an economy based upon unbridled expansion and extraction of finite resources.
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