BPA passes from cans to people

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BPA passes from canned food to the human body

US researchers have found that the chemical bisphenol A (BPA) passes from canned food into the food it contains in much higher concentrations than previously assumed and is ingested by humans when eating.

As the researchers around Jenny Carwile from the Harvard School of Public Health (HSPH) report in the current issue of the journal "the Journal of the American Medical Association" (JAMA), they found in a so far unique study that people with five consecutive Days of canned soup, showed a massive increase in bisphenol A in the urine.

Five days of canned food cause BPA concentration to rise sharply As part of their research, the researchers led by Jenny Carwile formed two groups with 75 volunteer study participants and served them vegetarian soups over a period of five days. One group received around 3.4 kilograms (12 ounces) of canned soup a day, the control group was provided with the same amount of fresh soup - without any canned ingredients. After the first two days, the group was changed in order to somewhat level the initial loads between the two groups. As the US researchers at the Harvard School of Public Health report, the study participants showed a significant increase in urinary BPA levels immediately after canning. Overall, the BPA concentration of the urine samples on the fourth and fifth days of the study was 20.8 micrograms per liter in the canned diet subjects compared to 1.1 micrograms in the control group. However, the researchers also detected 58 subjects in the control group bisphenol A in the urine. However, the concentration did not begin to reach the levels found in the subjects with canned food.

Manufacturers Should Avoid BPA in Their Products For the study participants with canned food, the extent of the increase in BPA in the urine after just one serving of soup was unexpectedly high, according to the US researchers. Jenni Carwile and colleagues explained that this could be a matter of concern for “people who regularly consume canned food”. The researchers found that the increased BPA levels found immediately after canned food were extreme in the current study, but may have been temporary peaks. For example, further research is needed to investigate the long-term effects of canned food BPA increases in the human body. However, the current research suggests that "it may make sense for manufacturers to test the removal of BPA from the linings" of the cans, said the study's senior author, Karin Michels.

Massive health risks from the chemical bisphenol A Bisphenol A has been under massive criticism for a long time due to the possible health consequences and has been prohibited by law for example in baby bottles and pacifiers since March 2003. Since then, almost all manufacturers with “BPA-free” stickers have indicated that their pacifiers and baby water bottles no longer contain bisphenol A. However, BPA is still used in numerous other plastic products such as plastic drinking bottles, children's toys and also the coatings on cans. The potential health risks that the chemical may pose include an increased risk of cardiovascular diseases as well as breast and prostate cancer, disorders of the hormonal balance and diseases of the ovaries. Developmental impairments - especially of the brain - in young children are also considered a possible consequence of BPA, as well as damage to the genome, an increased risk of diabetes and negative consequences on the course of pregnancy. In addition, according to the experts, erection problems and impairments of reproductive ability count among the health risks of bisphenol A. It seems that the dangerous chemical is still used in the production of toys, receipts, numerous everyday objects, but also packaging that comes into contact with food therefore particularly critical. The use of BPA in the coating of cans with epoxy resins should also be stopped urgently in view of the current results of the investigation, especially since the canned goods do their job without BPA. (fp)

Read on:
Bisphenol A makes girls hyperactive and aggressive
Environmentalists: BPA ban completely inadequate
Ban on bisphenol-A in baby bottles
Lobbyists prevent bisphenol-A ban
Study: Girls getting sexually mature earlier
Hormone-active chemicals threaten health

Image: Karin Schumann / pixelio.de

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