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Plastic baby bottles leach toxic bisphenol A into milk, infant formula and other liquids

Posted Oct 23 2008 6:33pm

Why use glass baby bottles (feeding bottles)

According to GreenLivingOnline, the Environmental Defense in a study on plastic baby bottles (feeding bottles) sold in Canada, found that 90% of them leach Bisphenol A into liquids such as milk, infant formula, etc. I would suppose that also include natural expressed mother's milk and I think that working mothers who expressed their milk, refrigerate them and caretakers heat up the milk to be put into baby bottles should be warned about this. They should use glass baby bottles (feeding bottles) instead of plastic baby bottles of those under their charge. The study mentioned showed that heating the feeding bottles resulted in exponential increase in leaching of Bisphenol A.

Glass baby bottles from Amazon

A graph of something increasing in an exponential way is shown below. Note that this is a logarithmic graph, and the increase shown is not in equal steps, but in multiple of 10. If plotted on normal graph paper, the rate in increase will look even more frightening:

exponential graph
Image of graph is property of Indi Samarajiva


Bisphenol A (BPA)

Bisphenol A (BPA) is an organic compound with the formula (CH3) 2 C(C 6 H 4 OH) 2. According to Wikipedia on Bisphenol A, there is a current controversy over BPA's effect on health. While it stated that Bisphenol A has a low acute toxicity and negligible skin permeability and widely used in cosmetics and foods as antioxidants. Wikipedia also mentioned about the growing concern that exposure to Bisphenol A may induce adverse effects in humans, citing some hormone disrupting effects in studies on animals and human cancer cells.

According to Wikipedia on Bisphenol A, recent studies have confirmed that bisphenol A exposure during development has carcinogenic effects and produce precursors of breast cancer, have developmental toxicity, carcinogenic effects, and possible neurotoxicity (toxicity on brain cells). Exposure to Bisphenol A may also be linked to triggering fat-cell activity, thus leading to obesity. Other research also endocrine disruptors like BPA may be implicated in schizophrenia pathogenesis (progression of a disease).

GreenLivingOnline went even further and mentioned association of exposure to Bisphenol A to early puberty in girls, Attention Deficit Disorder (AHDH) and hyperactivity disorder.

In the Canadian study which studied 3 branded plastic feeding bottles, leaching of bisphenol A produced concentration of Bisphenol A within a range of 5 to 8 ng/ml (parts per billion). Recent scientific research shows that bisphenol A can be harmful at doses below the levels found in the study.

Dr. Smith, the Environmental Defense Executive Director recommended that the Canadian federal government must act immediately by banning Bisphenol A from baby bottles and other food and beverage containers.
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