A new survey by a food watchdog group in the UK has shown that trace amounts of an estrogen-mimicking compound known as bisphenol A (BPA) can be found in many canned foods.
BPA is a chemical component of resins used to coat some cans. The group tested 62 samples from canned goods sold in UK supermarkets and found that low levels of BPA could be found in 40.
BPA was detected at up to 0.07 milligrams per kilogram (mg/kg) in 37 samples and at 0.35 to 0.42 mg/kg in three further cans.
The supposed "safe" limit for BPA is 3 mg/kg, according to the Food Standards Agency.
What constitutes a safe level of BPA consumption is controversial. Some scientists have found that BPA produces effects in animals at very low doses.
Research in animals has shown that BPA enlarges the size of the prostate gland in mice, advances the onset of puberty in females and reduces fertility in rats.
It is not known why BPA migrates into certain foods and not others, though it seems that the risk of seepage is higher when BPA is used as a linking agent between the can and the food rather than just in the lining of the can.
If you want to get and stay healthy you will need to minimize your consumption of canned foods. You will want to maximize your consumption of fresh unprocessed foods and eat the way your great great great grandparents ate.
I frequently feel that is the major service I am providing for patients who consult with me - to encourage, motivate and support them to eat the way their ancestors ate in the 1800s.
This latest research provides more evidence and support for limiting the intake of canned foods. Why would you want to consume foods that had any trace of bisphenol A, a potent carcinogen?
If you were really healthy, you could probably detoxify this chemical with little problem, but why put your system through the extra stress?
I have included a link to one of the finest nutritional researchers of the last 100 years who elegantly chronicled many of the problems associated with consuming processed foods.