A Physicians Committee for Responsible Medicine item on a Journal of Nutrition crossover trial: 29 adults with type 2 diabetes who ate 40 grams of soy protein a day lowered LDL cholesterol and their LDL-to-HDL ratio more than when they ate milk protein.
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Food
Research on specific foods and drinks, from coffee and eggs to fruit and meat.
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Food
Sugar-free drinks help in battle of obesity
A study of more than 300 people in the International Journal of Obesity suggests artificially sweetened beverages may help people maintain weight loss, alongside eating less fat and cutting caloric drinks. Adam Drewnowski cautions that low-calorie sweeteners are not magic bullets.
Food
Dietary Intervention Shows Neuroprotection
Aged rats ate chow containing 2, 6 or 9 percent walnuts, or none, for eight weeks before motor and memory testing; a moderate amount, but not a high one, helped performance. The 6 percent diet matches about an ounce, or 7 to 9 walnuts, a day for a person.
Food
Benefits of Compound in Turmeric Spice Studied
Over 12 weeks, 18 mice ate control, high-fat or curcumin-supplemented high-fat diets. Adding curcumin reduced body-weight gain and total body fat without changing food intake, and those mice grew fewer blood vessels in fat tissue, a team led by Mohsen Meydani found.
Food
Who Knew? Popcorn helps fight cancer
Joe Vinson of the University of Scranton told the American Chemical Society that popcorn carries the highest levels of polyphenol antioxidants among whole grain snacks. Antioxidants are believed to help fight cancer; researchers had previously credited whole grains' fiber.
Food
Nutrition Notes:Men Don’t Need to Fear Soy Foods
Karen Collins of the American Institute for Cancer Research writes that fears about soy feminizing men are not backed by sound research: men in their 50s and 60s who ate soy twice daily for three months showed no testosterone change but a 14 percent drop in PSA.
Food
Get to know what fish to eat
Reprints the 2004 EPA and FDA advice for women who may become pregnant, pregnant women, nursing mothers and young children: skip shark, swordfish, king mackerel and tilefish, and choose lower-mercury fish and shellfish to keep the nutritional benefits while limiting exposure.
Food
Eat chocolate to avoid dying from second heart attack?
Swedish researchers followed 1,169 heart attack survivors for eight years and found those who ate more chocolate were less likely to die of a heart attack. The piece cautions this was not a trial: diets were recorded only at the start, and sicker patients may have stopped eating chocolate.
Food
Fish and omega-3 don't reduce dementia risk
Researchers followed 5,395 Dutch adults aged 55 and over for 9.6 years, during which 465 developed dementia. Those eating the most fish or fatty fish had a risk similar to those eating none, and omega-3 intake showed no link to dementia either.
Food
Drinking wine may help protect against skin damage by radiation therapy
Among 348 Italian women having radiation for breast cancer, 13.6 percent of those who drank wine on treatment days had grade 2 or higher skin toxicity, against 38.4 percent of those who did not. Researchers credit antioxidants in wine.
Food
High fat diet impairs memory and physical performance
Rats fed a high-fat diet for nine days did worse on maze and treadmill tests than rats on a low-fat diet, a British study published by FASEB found. Cambridge physiologist Andrew Murray was cited as finding similar effects in people, but those results are unpublished.
Food
Chocolate Good for Heart Health
A Swedish study in the Journal of Internal Medicine followed heart attack survivors aged 45 to 75 and found regular chocolate eaters three times less likely to have a second attack. Italian researchers separately linked chocolate to lower C-reactive protein.
Food
Fatty acids may affect men's fertility
Among 150 Iranian men, infertile men had higher ratios of omega-6 to omega-3 fatty acids in blood and semen, while fertile men had more ALA, EPA and DHA. The authors call for research into whether omega-3 supplements could help treat male infertility.
Food
Beetroot juice may boost your stamina
Eight men aged 19 to 38 who drank 500 ml of beetroot juice daily for six days cycled 11.25 minutes on average, 92 seconds longer than on placebo. The researchers credit nitrate for cutting oxygen uptake, but did not establish the mechanism.
Food
Drinking beer and spirits raises cancer risk
Andrea Benedetti's team compared non-drinkers with weekly and daily drinkers and found the heaviest beer and spirits drinkers were seven times more likely to develop esophageal cancer, 80 percent more likely to get colon cancer and 50 percent more likely to get lung cancer.
Food
Green tea prevents blood cancer
Following 41,761 Japanese adults for nine years, researchers found those drinking five or more cups of green tea a day had 42 percent lower risk of blood cancers and 48 percent lower risk of lymphoid neoplasms. The authors say the finding does not establish cause.
Food
Black tea helps fight diabetes
Chinese researchers reported in the Journal of Food Science that polysaccharides in black tea inhibited glucose more strongly than those in green or oolong tea and scavenged free radicals best, suggesting black tea polysaccharides might be exploited for managing diabetes.
Food
Whole grains prevent hypertension
Alan Flint followed 31,684 male health professionals for 18 years and recorded 9,227 new cases of hypertension. Men eating the most whole grains had a 19 percent lower incidence, and those eating the most bran a 15 percent lower incidence, than men eating the least.
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