A randomized two-year clinical trial involving 403 healthy postmenopausal women has found that a daily 80-120 mg supplement of soy hypocotyl isoflavones does not present a health risk, and may actually protect against cancer. The trial was designed to test the impact of soy isoflavone supplementation on osteoporosis, but researchers were also trying to determine if long-term supplementation led to adverse health outcomes. Only two women in the soy supplement groups experienced serious health problems: one case of breast cancer and one case of endometrial cancer. This “was less than the expected population rate for these cancers,” the researchers said. The supplement used in the study was the patented soy germ isoflavone product SoyLife from Frutarom.
"Clinical outcomes of a 2-year soy isoflavone supplementation in menopausal women", American Journal of Clinical Nutrition, February 01, 2011
Russian and Israeli scientists have developed and successfully lab-tested an antibacterial "killer paper" coated with silver nanoparticles that could be used as food packaging material. The paper helps preserve foods by fighting the bacteria that cause spoilage. Silver is currently used as a bacteria fighter in some medicinal ointments, on kitchen and bathroom surfaces, and even odor-resistant socks. Silver nanoparticles – each 1/50,000 the width of a human hair – are being tested as germ-fighting coatings for plastics, fabrics, and metals because they have a longer-lasting effect than larger silver particles. The silver nanoparticles-coated paper showed potent antibacterial activity against E. coli and S. aureus, two causes of bacterial food poisoning, killing all of the bacteria in just three hours.
"Sonochemical Coating of Paper by Microbiocidal Silver Nanoparticles", pubs.acs.org/Langmuir, January 18, 2011
Antioxidants consumed from natural sources such as fruits and vegetables reduce by as much as 50 percent the risk of developing lower urinary tract symptoms (LUTS) in men, according to new U.S. research. High-dose supplemental antioxidants, however, actually increase the risk of LUTS, researchers found, perhaps because of increased urinary acidity caused by the supplements. In a study of 1,466 men, the higher the natural intake of lycopene, beta-carotene and vitamin A (4,780 micrograms a day), the greater the reduction of LUTS risk – as much as 40 to 50 percent – compared to low average intake (775 micrograms a day). Regarding antioxidant supplements, the researchers concluded that “for some men, LUTS could be ameliorated by changing urine composition through modification of high-dose supplement use.”
"Dietary, but Not Supplemental, Intakes of Carotenoids and Vitamin C Are Associated with Decreased Odds of Lower Urinary Tract Symptoms in Men", Journal of Nutrition, December 22, 2010
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Cancer Epidemiology, Biomarkers & Prevention, February 04, 2011
Journal of Medical Microbiology, January 25, 2011
Journal of Agricultural and Food Chemistry, January 04, 2011
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