In the Harvard study, a group of people consumed canned soup each day for five days. The researchers found that these people had a more than 1,000 per cent increase in urinary Bisphenol A (BpA) concentrations compared with when the same individuals consumed fresh soup daily for five days.
The researchers, led by Dr Jenny Carwile and Dr Karin Michels, associate professor in the Department of Epidemiology, recruited student and staff volunteers from the Harvard School of Public Health. One group consumed a 12-ounce serving of vegetarian canned soup each day for five days; another group consumed 12 ounces of vegetarian fresh soup (prepared without canned ingredients) daily for five days. After a two-day “washout” period, the groups reversed their assignments.
Urine samples of the 75 volunteers taken during the testing showed that consumption of a serving of canned soup daily was associated with a 1,221 per cent increase in BpA compared to levels in urine collected after consumption of fresh soup.
Senior author of the study, Dr Michels said, “The magnitude of the rise in urinary BpA we observed after just one serving of soup was unexpected and may be of concern among individuals who regularly consume foods from cans or drink several canned beverages daily. It may be advisable for manufacturers to consider eliminating BpA from can linings.”
Lees verder op Australian Food News.
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