Fredrick Vom Saal, is an endocrinologist at the University of Missouri who studies bisphenol-A.
Joel Salatin is co-owner of Polyface Farms and author of half a dozen books on sustainable farming.
Olga Naidenko, is a senior scientist for the Environmental Working Group.
The problem: Chemicals, including perfluorooctanoic acid (PFOA), in the lining of the bag, are part of a class of compounds that may be linked to infertility in humans, according to a recent study from UCLA. In animal testing, the chemicals cause liver, testicular, and pancreatic cancer. Studies show that microwaving causes the chemicals to vaporize–and migrate into your popcorn. “They stay in your body for years and accumulate there,” says Naidenko, which is why researchers worry that levels in humans could approach the amounts causing cancers in laboratory animals. DuPont and other manufacturers have promised to phase out PFOA by 2015 under a voluntary EPA plan, but millions of bags of popcorn will be sold between now and then.
Jeffrey Moyer is the chair of the National Organic Standards Board.
The problem: Root vegetables absorb herbicides, pesticides, and fungicides that wind up in soil. In the case of potatoes–the nation’s most popular vegetable–they’re treated with fungicides during the growing season, then sprayed with herbicides to kill off the fibrous vines before harvesting. After they’re dug up, the potatoes are treated yet again to prevent them from sprouting. “Try this experiment: Buy a conventional potato in a store, and try to get it to sprout. It won’t,” says Moyer, who is also farm director of the Rodale Institute (also owned by Rodale Inc., the publisher of Prevention). “I’ve talked with potato growers who say point-blank they would never eat the potatoes they sell. They have separate plots where they grow potatoes for themselves without all the chemicals.”
The solution: Buy organic potatoes. Washing isn’t good enough if you’re trying to remove chemicals that have been absorbed into the flesh.
Dr. David Carpenter, director of the Institute for Health and the Environment at the University at Albany, published a major study in the journal Science on contamination in fish.
Budget tip: Canned salmon, almost exclusively from wild catch, can be found for as little as $3 a can.
Rick North is project director of the Campaign for Safe Food at the Oregon Physicians for Social Responsibility and former CEO of the Oregon division of the American Cancer Society.
The problem: Milk producers treat their dairy cattle with recombinant bovine growth hormone (rBGH or rBST, as it is also known) to boost milk production. But rBGH also increases udder infections and even pus in the milk. It also leads to higher levels of a hormone called insulin-like growth factor in milk. In people, high levels of IGF-1 may contribute to breast, prostate, and colon cancers. “When the government approved rBGH, it was thought that IGF-1 from milk would be broken down in the human digestive tract,” says North. As it turns out, the casein in milk protects most of it, according to several independent studies. “There’s not 100 percent proof that this is increasing cancer in humans,” admits North. “However, it’s banned in most industrialized countries.”
Mark Kastel, a former executive for agribusiness, is codirector of the Cornucopia Institute, a farm-policy research group that supports organic foods.
Fonte e imagem: