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 [style=font-style: italic;]BMJ Open.
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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.
"Diet intervention fails to reduce ‘ubiquitous’ BPA exposure for teens," [style=font-style: italic;]Endocrine Today,[/style]6 February 2018, https://www.healio.com/endocrinology/hormone-therapy/news/in-the-journals/%7B8647701c-8f57-416f-8155-53c30d2ec558%7D/diet-intervention-fails-to-reduce-ubiquitous-bpa-exposure-for-teens
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- “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 [style=font-style: italic;]Endocrine Today.[/style]“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," [style=font-style: italic;]Endocrine Today,[/style]6 February 2018, https://www.healio.com/endocrinology/hormone-therapy/news/in-the-journals/%7B8647701c-8f57-416f-8155-53c30d2ec558%7D/diet-intervention-fails-to-reduce-ubiquitous-bpa-exposure-for-teens
