Sunday, April 26, 2015

Bisphenol A and Blood Pressure

An article by Jessica Tran in the March 2015 issue of the Natural Medicine Journal discusses a trial looking at bisphenol A (BPA) exposure and blood pressure. The trial involved 60 volunteers who either drank 2 servings of soy milk from glass bottles or from BPA lined cans. The volunteers consumed the drinks on 3 separate occasions and fasted for 8 hours prior to drinking the soy milk and had no other food or drink for 2 hours after. Their urinary BPA concentration and blood pressure were measured each time 2 hours after the volunteers drank the soy milk.  The volunteers who drank from the BPA lined cans were found to have a 1600% increase in urinary BPA concentration and a 4.5 mmHg increase in blood pressure compared to the volunteers who drank from the glass bottles.  Even though this isn't a huge increase in blood pressure, it can still be significant for many of us.  This trial provides another valuable reason to aim to limit our exposure to BPA (and an additional strategy to manage our blood pressure).  Ways to do this include: storing food and drinks in glass or stainless steel containers, limiting our consumption of food from BPA lined cans, limiting our exposure to cash register receipts (which contain BPA).  

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