Dr. Carrie Ruxton of the Tea Advisory Council told Mail Online that three cups of tea a day can ward off heart attacks. She credits tea's flavonoids, whose anti-inflammatory action may aid blood vessel function and lower thrombosis risk, rather than its polyphenols.
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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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Diet
Home-cooked foods mean leaner kids
Southampton researchers who assessed the diets of 536 children at 6 and 12 months found those weaned on fruit, vegetables and home-cooked food had more lean tissue at age four than the rest. Longer breastfeeding went with lower fat levels.
Vitamins
Vitamin K: Help for Those with CAC
A Tufts study of 388 people with coronary artery calcification found those given vitamin K1 averaged 6 percent less calcification than those who did not take it. Vitamin K activates matrix GLA protein, which regulates calcium build-up in blood vessels.
Food
Study proves benefit of green tea for leukemia sufferers
A Mayo Clinic study in the Journal of Clinical Oncology found high doses of the green tea compound EGCG were tolerated by chronic lymphocytic leukemia patients, stabilized early-stage disease and were accompanied by a 50 percent reduction in lymph node size.
Diet
DASH diet leads to healthy heart
Following more than 36,000 Swedish women for seven years, researchers found those whose eating most resembled the DASH plan had heart failure rates 37 percent lower than the bottom quarter. The top tenth had half the rate of the lowest scorers; 443 women developed heart failure.
Vitamins
Vitamin D: A “Legal” Performance Enhancing Substance?
Citing an American College of Sports Medicine statement, the article reports that activated vitamin D acts as a hormone regulating over 1,000 genes, including in muscle and nerve, and that studies since the 1950s tie musculoskeletal performance to vitamin D levels, peaking with summer sun.
Vitamins
High vitamin D linked to better cognitive function in old people
A Manchester study of 3,000 European men found those with more vitamin D in their blood did better on cognitive and social tests, with results published in the Journal of Neurology, Neurosurgery and Psychiatry. An earlier study of 900 people tied higher levels to better physical performance.
Food
Astaxanthin: Algae’s Little Miracle Nutrient
Naturalnews.com compiled studies crediting astaxanthin, a carotenoid from microalgae, with fighting wrinkles, easing inflammation and absorbing free radicals that damage mitochondria. It also crosses the blood-brain barrier, protecting neurons in Japanese experiments.
Vitamins
Vitamin K helps strengthen bones
A Nutrition Research review of seven trials in postmenopausal women found high doses of vitamins K1 and K2 raised bone mineral density only moderately yet reduced clinical fractures. Women took 200 micrograms to 5 milligrams of K1 daily, or 45 milligrams of K2, for two years or more.
Minerals
Is calcium supplementation effective?
Dr. Robert Thompson argues calcium supplements create a mineral imbalance that can lower bone density. A Women's Health Initiative study of 36,282 women found only a 1 percent hip gain; lead author Elizabeth Nabel still recommends continuing, while others cite kidney stone risk.
Food
Gluten-free not great for gut health
A British Journal of Nutrition study from the Spanish National Research Council put ten healthy adults on a gluten-free diet for a month and found E. coli rose, beneficial bacteria such as Bifidobacterium fell, and markers of immune function dropped.
Food
Excessive cola intake leads to muscle problems
A review in the International Journal of Clinical Practice links drinking 2 to 9 litres of cola a day to hypokalemia, with symptoms from mild muscle weakness to profound paralysis. Patients recovered once they stopped the cola and took potassium; caffeine looks like the main driver.
Food
Turmeric extract may fight obesity
Tufts researchers fed mice a high-fat diet for 12 weeks with or without curcumin, and the curcumin group gained less weight and carried less fat tissue, which the team attributes to suppressed blood vessel growth in fat. Senior author Mohsen Meydani notes no human studies have been done.
Food
Ginger helps fight chemotherapy nausea
In a University of Rochester study of 644 chemotherapy patients already taking standard anti-nausea drugs, every ginger dose significantly reduced nausea, with the largest reductions at 0.5 and 1.0 grams taken daily for six days starting three days before treatment.
Vitamins
Vitamin D reduces asthma severity
Children hospitalized with asthma problems typically had low blood levels of vitamin D, echoing a 2006 Australian study in which sunlight eased asthma severity in mice. The Journal of Allergy and Clinical Immunology reports maternal supplementation may cut children's asthma risk.
Vitamins
Nutrient protection against arsenic toxicity
Among 165 six-year-olds in Bangladesh, researchers found that shortfalls in folate and the amino acid cysteine may hinder arsenic metabolism, which depends on two methylation steps. The children appeared to metabolize and excrete arsenic more efficiently than adults.
Supplements
Glutamine may help prevent damage by H. pylori
Beth Israel Deaconess and MIT researchers found that mice infected with H. pylori and treated with L-glutamine showed significantly less inflammation, the damage that can lead to chronic gastritis and stomach cancer. Earlier work showed glutamine cuts the bacteria's ammonia.
Vitamins
Nutritionist says antioxidants imperative for exercisers
In a University of Jena study, diabetics given 1,000 mg of vitamin C and 400 IU of vitamin E before exercise did not show the expected mopping up of damaging oxygen molecules; researchers suspect the supplements short-circuit the body's own response. One nutritionist calls it too early to conclude.
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