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Wednesday, May 27, 2009
Harvard Study Confirms Plastic Bottle Concerns
A Har
vard School of Public Health study is the first to confirm that drinking from plastic water bottles increase the amount of a chemical plasticizer that leaches into the body. The study definitively shows that drinking from a bottle containing bisphenol A (BPA), a chemical used to make plastics clear and shatter-resistant, increases the level of the chemical in urine.
In the study published by Environmental Health Perspectives, 77 Harvard students drank cold water from stainless steel bottles without BPA for a week. The following week the students drank water from plastic bottles made with BPA. During the second week, the amount of BPA in their urine was found to have increased by 69 percent.
According to the Boston Globe, the health effects of BPA on adults are not well understood. However, a recent large human study linked BPA concentrations in people’s urine to an increased prevalence of diabetes, heart disease, and liver toxicity.
The Harvard study was sparked by Karin B. Michels, an associate professor at the School of Public Health, after she warned students who regularly drank from hard plastic bottles that they might want to limit their BPA. The students countered her warning by asking how much BPA they were getting from bottles, and soon this study was born.
Just last year, Canada banned the use of BPA in baby bottles, and Massachusetts is considering warning pregnant women and young children to avoid food, drinks, and other items containing the chemical.
BPA is used in hundreds of everyday products including: plastic baby bottles, the lining of canned goods such as soap, infant formulas, microwavable plastic dishes, dental sealants, PVC pipe and carbonless paper.
vard School of Public Health study is the first to confirm that drinking from plastic water bottles increase the amount of a chemical plasticizer that leaches into the body. The study definitively shows that drinking from a bottle containing bisphenol A (BPA), a chemical used to make plastics clear and shatter-resistant, increases the level of the chemical in urine.In the study published by Environmental Health Perspectives, 77 Harvard students drank cold water from stainless steel bottles without BPA for a week. The following week the students drank water from plastic bottles made with BPA. During the second week, the amount of BPA in their urine was found to have increased by 69 percent.
According to the Boston Globe, the health effects of BPA on adults are not well understood. However, a recent large human study linked BPA concentrations in people’s urine to an increased prevalence of diabetes, heart disease, and liver toxicity.
The Harvard study was sparked by Karin B. Michels, an associate professor at the School of Public Health, after she warned students who regularly drank from hard plastic bottles that they might want to limit their BPA. The students countered her warning by asking how much BPA they were getting from bottles, and soon this study was born.
Just last year, Canada banned the use of BPA in baby bottles, and Massachusetts is considering warning pregnant women and young children to avoid food, drinks, and other items containing the chemical.
BPA is used in hundreds of everyday products including: plastic baby bottles, the lining of canned goods such as soap, infant formulas, microwavable plastic dishes, dental sealants, PVC pipe and carbonless paper.
Labels: bottle, drinks, food, heart disease, plastic, pregnant
posted by
Chavon Williams
at
6:39 AM
