Kuwait University researchers treated diabetic and hypertensive rats with garlic for three weeks and found serum glucose and systolic blood pressure fell, while antioxidant levels including glutathione and vitamin C rose above baseline.
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Food
Research on specific foods and drinks, from coffee and eggs to fruit and meat.
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Food
Drinking wine may help prevent esophageal cancer
Among 953 Northern Californians, those drinking a glass or more of red or white wine a day were 56 percent less likely to have Barrett's esophagus, a precursor to esophageal cancer. Beer and liquor showed no link, and drinking more wine added no further benefit.
Food
12 fruits and vegetables you don’t have to buy organic
Citing the Environmental Working Group, the piece names the 12 conventional fruits and vegetables carrying the fewest pesticides, among them broccoli, cabbage, bananas, mango, pineapple, avocado and onions, and the 12 worst, led by peaches, apples, sweet bell peppers and celery.
Food
Turmeric may help prevent type 2 diabetes
Mice fed high doses of dietary curcumin had better blood glucose and glucose and insulin tolerance, and obese mice showed less inflammation in fat tissue and liver, a Columbia team found. They speculate curcumin eases insulin resistance by damping obesity-driven inflammation.
Food
Cranberry juice creates energy barrier that keeps bacteria away from cells
Worcester Polytechnic researchers exposed two E. coli varieties to different cranberry juice concentrations and found the juice altered the bacteria's thermodynamic properties, creating an energy barrier that makes it harder for fimbriaed bacteria to latch onto cells.
Food
Eat watermelon to boost men's sexual performance?
Texas A&M researchers publicized citrulline, an arginine precursor concentrated in watermelon rind, as a boost to sexual performance. The writer counters that six or seven slices plus the rind would be needed, and that arginine studies used 2 to 5 gram daily doses.
Food
Breastfeeding linked to a range of health benefits for infants
A review of 43 primary studies and 29 systematic reviews ties breastfeeding to lower risk of infections, asthma, obesity, diabetes, leukemia and SIDS in infants, and of type 2 diabetes, breast and ovarian cancer and depression in mothers. Most studies were observational.
Food
Study explains why broccoli fights prostate cancer
In a PLoS One study, 24 men with precancerous prostate lesions ate four extra weekly servings of broccoli or peas for a year. The broccoli group showed hundreds of changes in cancer-related genes, which the researchers offer as a possible mechanism.
Food
Drinking green tea helps prevent heart disease
A Greek study gave 14 healthy volunteers green tea, diluted caffeine or hot water and found that within 30 minutes the cells lining their blood vessels worked better, relaxing arteries and easing blood flow. Researchers credit flavonoids, which green tea carries more of than black tea.
Food
Green tea reduces an important risk factor for heart disease
In a randomised trial, healthy volunteers' brachial artery dilatation rose significantly after they drank green tea, peaking at 3.9 percent after 30 minutes, while caffeine and hot water had no significant effect. Endothelial dysfunction is a key step in atherosclerosis.
Food
Caffeine may help prevent MS
Mice given a daily caffeine dose equivalent to 6 to 8 cups of coffee were protected from a condition resembling multiple sclerosis. Linda Thompson's team reported that caffeine kept adenosine from binding its receptor, a step T cells need to reach the central nervous system.
Food
Watermelon May Have Viagra-Effect
Texas A&M researchers say watermelon's citrulline converts in the body to arginine, which relaxes blood vessels much as Viagra does, and may raise libido. The piece notes peanuts are a rich source of arginine and suggests eating those and vitamin C rather than relying on melon alone.
Food
Coffee drinkers at lower risk of liver cancer
Among 60,323 Finnish adults followed up to 19 years, the heaviest coffee drinkers were up to 68 percent less likely to develop liver cancer, while high serum GGT tripled the risk. An accompanying editorial cautions it remains unknown whether the coffee link is causal.
Food
Most consumers do not understand trans fat
A marketing study found many shoppers cannot tell whether 4 grams of trans fat is high or low, especially those who know little about the fat's effects. The authors say the FDA labeling rule, in force since 2006, will not help unless marketers and policymakers teach people what the numbers mean.
Food
Green leafy vegetables cut diabetes risk
Following 71,346 female nurses for 18 years, Lydia Bazzano's team linked each extra daily serving of green leafy vegetables to 9 percent lower diabetes risk and three daily servings of whole fruit to 18 percent lower risk. Fruit juice went the other way, with 18 percent higher risk.
Food
How to figure out the amount of trans fat in cooking oil
Labels may read zero grams of trans fat when a serving contains up to 0.5 gram. The piece shows the arithmetic: add the saturated, polyunsaturated and monounsaturated fat, subtract that from total fat, and the difference is the trans fat the label leaves out.
Food
More than two-thirds of consumers not aware HFCS is similar to sugar
The Corn Refiners Association announced a multi-media campaign to change the conversation about high fructose corn syrup, citing a survey in which more than two-thirds of shoppers did not know it has the same calories as table sugar and only 19% knew the two are equally sweet.
Food
Coffee may reduce risk of death from heart disease in women
Following 84,214 women and 41,736 men for up to two decades, researchers reported in the Annals of Internal Medicine that drinking up to six cups of coffee a day was not tied to higher mortality, and was linked to a slightly lower rate of death from heart disease.
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