Remember a few weeks ago I warned you that 40 percent of store receipts contain residue of BPA or bisphenol-A? It‘s a type of plastic commonly used make plastic food and beverage containers. The problem is, BPA leaches into your food and drinks and can disrupt your entire endocrine system.

The FDA has told you time and again that moderate exposure to BPA isn‘t harmful to your health. But a new major study proves otherwise.

Scientists from the UK recruited 715 healthy adults to examine the effects of BPA on hormone production. They collected samples of their urine and measured the amount of BPA excreted daily.

The scientists found that men and women were exposed -- on average -- to a little over 5 micrograms of BPA per day. (Scientists estimate that in the U.S. men and women on average are exposed to slightly less than 5 micrograms of BPA per day.)

The scientists also discovered that the higher the BPA exposure, the greater the hormone disruption. In men, they found higher levels of testosterone. Previous studies have also proven that BPA mimics the action of estrogen in the body. These two disruptions together spell big problems for men and women.

As you‘ll recall, last year scientists found that men exposed to high levels of BPA experienced significant erectile dysfunction. And for women, too much estrogen circulating in the blood is a major risk factor for breast cancer.

Small exposure spells big problems

According to the study‘s lead author, David Melzer, "This is the first big study of BPA from a European country and confirms that ‘routine‘ exposures in the population are not negligible."

So even if you don‘t work in a plastic factory, there are significant risks to limited BPA exposure day in and day out. As I‘ve urged before, throw out any plastic that‘s got a #7 on it. You know it contains BPA. Plus -- it‘s wise to avoid all canned foods, as these are likely to contain BPA as well.

Plastics products imprinted with #1, #2 and #4 on the bottom are safer choices and do not contain BPA. To solve the problem altogether, skip the plastic and store food in glass or ceramic containers. That‘s what we used in the good ‘ole days, anyway.