A genetically modified corn described in PNAS carries double the average folate, six times the vitamin C and 169 times the beta-carotene, and passed the traits to several generations. The team, led by Paul Christou, offered it as a response to worldwide vitamin deficiency.
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Nutrition
Vitamins, minerals, supplements, herbs and diet: the research on how what we eat shapes our health.
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Nutrition
Confirmed swine flu cases reach 66 in the US
US confirmed cases reached 66 and a toddler in Brownsville, Texas became the first death, with most cases in New York City. The strain mixes human, bird and swine flu, and CDC experts attribute deaths among healthy adults in Mexico to a cytokine storm immune overreaction.
Supplements
Obesity’s newest enemy: Curcumin
In a Journal of Nutrition study, mice put on a high-fat diet and then given large doses of turmeric for 12 weeks lost body weight, fat mass and cholesterol without eating any less. Lead author Asma Ejaz says curcumin may have potential in preventing obesity.
Food
Grapes boosts heart health
A University of Michigan team led by E. Mitchell Seymour fed salt-sensitive rats a high-sodium diet, then gave one group grape powder. After 18 weeks those rats had lower blood pressure, better heart function and fewer signs of hypertension damage than rats given a blood pressure drug.
Diet
Keeping hydrated crucial
The CDC says water keeps body temperature normal, cushions joints, protects the spinal cord and carries off waste, and that thirst already signals dehydration. Working or playing outdoors, drink 10 ounces every 15 to 20 minutes and watch for less urination, dry mouth and dizziness on standing.
Vitamins
Vitamin C shown to prevent gout
An Archives of Internal Medicine study followed 46,994 men for 20 years and found gout risk fell as vitamin C intake rose: 34 percent lower at 1,000 to 1,499 mg a day and 45 percent lower above 1,500 mg. It counted 1,317 new gout cases over the period.
Vitamins
Reduced form of CoQ10 shown more effective
A NaturalNews report says ubiquinol, the reduced form of CoQ10, absorbs better than ubiquinone. Texas researchers who could not maintain adequate blood plasma CoQ10 on high doses of the unreduced form saw levels rise 22 to 39 percent once patients were given ubiquinol.
Food
Chew On This
In a Wrigley-funded Baylor College of Medicine study, 108 students aged 13 to 16 were split by whether they chewed gum during math class and tests. After 14 weeks the gum chewers' standardized math scores were about three percent higher, but researchers cannot explain the mechanism.
Food
Chewing gum may boost academic performance in students
In a Wrigley-funded Baylor study, 108 students aged 13 to 16 either chewed gum during math class, tests and study or refrained. After 14 weeks the gum chewers' standardized math scores had risen about three percent and their final grades were better. Researchers cannot say why.
Food
Pomegranate juice slows tumor growth in post-treatment prostate cancer patients
In a six-year trial of 48 men treated for localized prostate cancer, drinking 8 ounces of pomegranate juice daily was followed by PSA doubling time rising from a mean of 15.4 months to 60 months. Five of the six researchers disclosed ties to POM Wonderful, which made the juice used.
Food
Walnuts and fish lower cholesterol and triglyceride levels
In a randomized crossover feeding trial funded by the California Walnut Commission, a walnut diet lowered total and LDL cholesterol more than the control and fish diets, while the fish diet cut triglycerides and raised HDL cholesterol.
Food
Green tea, capsaicin affect weight loss
Testing 27 subjects over six weeks, researchers found CH-19 sweet pepper and the combination of capsaicin and green tea significantly cut energy intake during positive energy balance, though no significant interactions on intake emerged overall. Capsaicin's effect faded with habitual use.
Food
Cherries boost antioxidant levels
Twelve healthy adults aged 18 to 25 ate one and a half or three cups of frozen tart cherries; antioxidant activity rose in all of them for up to 12 hours, along with five anthocyanins in the blood. Lead researcher Sara Warber says more research is needed.
Supplements
Oat leaf extract: New hope for cigarette smokers?
A small Japanese study gave eight smokers, median age 32.5, an oat leaf extract sold as Neuravena; their average daily cigarettes fell from 19.5 to 8.9. The extract contains no nicotine and acts on brain enzymes. The writer says follow-up studies are needed.
Supplements
ARS dietary supplement data supports nutrient intake assessments
ARS and the NIH Office of Dietary Supplements launched the Dietary Supplement Ingredient Database, which uses chemical analysis to estimate levels of 18 vitamin and mineral ingredients in 115 representative adult multivitamins against what their labels report.
Phytochemicals
Flavonoids reduce ovarian cancer risk
Harvard's Margaret Gates compared 1,141 women with ovarian cancer to 1,183 without and found those eating more apigenin — in celery, parsley, red wine and tomato sauce — were less likely to develop it. She stresses more research is needed before anything is definitive.
Diet
Mediterranean diet best for heart health
Searching studies and randomized trials, researchers found the Mediterranean diet the only dietary pattern linked to lower coronary heart disease risk. Moderate evidence supported omega-3, folate, whole grains, wine, fruit, fibre and vitamins E and C; trans fats looked harmful.
Food
Eating walnuts reduces breast cancer risk
In a study funded by the American Institute for Cancer Research and the California Walnut Commission, mice fed walnuts developed breast tumors less often, and the tumors that did appear came at least three weeks later and grew more slowly than in mice given none.
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