Proposed legislation would ban BPA in food and beverage containers for adults as well as children under three, after Sunoco told investors it would not sell BPA for such uses. Studies cited link BPA to developmental problems in lab animals and, in humans, to heart disease and diabetes.
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Chemical
Chemical hazards: fluoride, pesticides, BPA and other contaminants.
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Chemical
Artificial food dyes linked to hyperactivity, doctors urge Congress to act
Nineteen psychiatrists, toxicologists and pediatricians have asked Congress to ban synthetic food dyes, pointing to a growing link with hyperactivity and attention problems. Dyes such as Red 40, Yellow 5 and Blue 1 are common in gum, candy and cereal marketed to children.
Chemical
Cancer-causing toxins detected in fluoride chemicals
CDC data show arsenic in 43 percent of 245 water fluoridation chemical samples taken from 2000 to 2006, copper in 3 percent, lead in 2 percent, and barium, chromium, mercury, selenium or thallium in under 1 percent. The EPA sets its arsenic goal for water at zero.
Chemical
Soy Compounds Affect Brain, Reproductive Development
North Carolina State researchers report that phytoestrogens tied to soy-based foods altered the sex-specific organization of the hypothalamus in laboratory rats, bringing early puberty and signs of advanced menopause. Co-author Heather Patisaul says the brain changes cannot be reversed.
Chemical
Q&A: Trans fat
California's new law phases artificial trans fat out of restaurants by 2010 and out of baked goods by 2011, with fines of $25 to $1,000. Packaged foods appear untouched. Republished Q&As explain what partially hydrogenated oil is and why the industry uses it.
Chemical
Study: Ingestion of trans-fatty acids does not affect insulin sensitivity
French researchers fed rats diets with 4 percent of calories from industrial or dairy trans fat for eight weeks and found neither impaired insulin sensitivity or muscle mitochondrial capacity. Because the work was done in rats, it does not establish that trans fat is harmless to people.
Chemical
Food allergies: What you need to know
A primer on food allergy with prevalence figures: 1.9 to 3.2 percent for cow's milk and 2.6 percent for egg in young children, 2.3 percent for seafood overall. It counts roughly 30,000 US episodes of food-induced anaphylaxis a year and 100 to 200 deaths.
Chemical
Chlorinated tap water may cause birth defects
Among data on nearly 40,000 Taiwanese infants, women exposed during pregnancy to trihalomethanes above 20 µg/L in tap water faced a 50 to 100 percent higher risk of three birth defects — holes in the heart, cleft palate and anencephalus. The mechanism is still unknown.
Chemical
Food additives linked to ADHD
A 2007 Lancet study by Jim Stevenson's Southampton team gave 153 three-year-olds and 144 eight- and nine-year-olds drinks containing sodium benzoate plus artificial dyes, and suggests those mixtures may worsen hyperactive behavior in young children.
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