William Harris of Sanford Research/USD reviewed about two dozen studies and found people eating the most omega-6 fats had lower rates of heart disease. He suggests replacing calories from saturated fat and carbohydrates with omega-6s, a position the American Heart Association shares.
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Food
Research on specific foods and drinks, from coffee and eggs to fruit and meat.
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Food
The case against wine uncorked
A Dutch study following nearly 1,400 men over 40 years found wine drinkers lived about four and a half years longer than abstainers. The American Cancer Society counters with the Million Women Study, where low to moderate drinking raised risk of several cancers, including breast.
Food
High-fat foods boost memory
UC Irvine researchers report that rats given the fat-derived compound OEA remembered water-maze tasks and unpleasant experiences better, apparently because OEA activates memory signals in the amygdala. Piomelli warns it may also drive long-term cravings for fatty food.
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.
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.
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.
Food
Drinking vegetable juice helps weight loss
Overweight people with metabolic syndrome who drank at least 8 ounces of low-sodium vegetable juice with a calorie-controlled DASH diet lost four pounds over 12 weeks, against one pound on the diet alone. Juice drinkers also took in more vitamin C and potassium.
Food
Pineapple: The true miracle fruit
Pineapple supplies vitamin C along with B1, B6 and magnesium, and its enzyme bromelain aids digestion. The article cites a Duke University Medical Center study finding bromelain effective against bowel disease and a Natural Health editor's claim that it beats drugs at fighting inflammation.
Food
Breast cancer risk reduced by green tea, mushrooms
In a Chinese study of 1,009 breast cancer patients and 1,009 healthy women, the heaviest mushroom eaters were about two-thirds less likely to have the disease, and those eating dried mushrooms 56 percent less likely. Mushrooms and green tea together showed the strongest association.
Food
Garden pea lowers blood pressure
Rats with severe kidney disease given an enzyme-activated pea protein extract showed a 20 percent drop in blood pressure and 30 percent more urine output after eight weeks. Human testing is planned, and eating peas themselves does not confer the same protection.
Food
Caffeine before workouts may help moderate muscle pain
In a study of 25 college-aged men who cycled for 30 minutes, those given 5 mg of caffeine per kilogram of body weight reported a moderate reduction in quadriceps pain against placebo. The researcher says more work is needed beyond this group.
Food
Matzo ball soup may help lower high blood pressure
A study in the Journal of Agricultural and Food Chemistry identified four peptides from chicken leg collagen that can act as ACE inhibitors, which may lower blood pressure. The researchers note chicken breast muscle does not yield the same materials.
Food
Soy food prevents breast cancer
A case-control study of 597 women with breast cancer and 966 without, across three Asian-American groups, tied the highest childhood soy intake to 60% lower risk. Adolescent and adult intake showed weaker links that faded after adjusting for westernization.
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