In a press release from December 8, 2014 the industry association American Chemistry Council (ACC) claims that the newly released study, which links BPA to increased blood pressure (previously reported on by the FPF), will inappropriately concern and confuse consumers. The association argues that the small-scale study lacks statistically significant findings to support the claim that drinking canned beverages may elevate blood pressure. The study only investigated soy milk that is not at all representative of all canned beverages, ACC stressed. Blood pressure is believed to be controlled by estrogen receptors. It is well-known that soy milk contains estrogenic substances. Thus, the use of soy milk in the study confounds the results. BPA is only weakly estrogenic and low levels of BPA in the diet are considered too low to cause any estrogenic effects. Small differences in blood pressure that were reported in the study are unlikely to be related to BPA exposure and may instead be due to the soy milk itself.
Bae, S., Hong, Y-C. (2014). “Exposure to Bisphenol A from drinking canned beverage increases blood pressure: randomized crossover trial.” Hypertension (published online December 8, 2014)