Hot Topics: September 2014

  1. Iron supplementation during infancy results in greater adaptive behavior by age 10-years-old, which would improve school performance and work, mental health, and personal relationships, state researchers at the University of Michigan. Journal of Nutrition 2014;144:838-845.
  2. Olive leaf extract is a potent antioxidant rich in polyphenols that helps lower oxidative stress, according to a study from Yeditepe University Medical Faculty in Istanbul, Turkey. Geriatrics & Gerontology International 2014;May 23rd.
  3. Adults who consume diets with a high glycemic index and/or high glycemic load have up to a 50% increased risk for developing type 2 diabetes, state researchers at Harvard School of Public Health. American Journal of Clinical Nutrition 2014;April 30th.
  4. In the past 3 decades, the number of overweight and obese people worldwide has increased from 857 million to 2.1 billion. The U.S. is home to the highest proportion of the world’s obese people, at 13%, and peak obesity rates are occurring at younger ages, state researchers at the Institute for Health Metrics and Evaluation at the University of Washington in Seattle. Lancet 2014: May 29th.
  5. Postmenopausal women consume diets that are low in calcium, magnesium, potassium, selenium, folate, niacin, and vitamins D, E, and B6, state researchers at Tehran University of Medical Sciences. Journal of Diabetes and Metabolic Disorders 2014;April 25th.
  6. People who consume sweetened beverages like soft drinks, bottled teas, and energy drinks, are at higher risk for stroke, according to a study from the Karolinska Institute in Stockholm. Journal of Nutrition 2014;144:856-860.
  7. A combined supplement of resveratrol and piperine increased cerebral blood flow during mental task examinations in a study from Northumbria University in the U.K. British Journal of Nutrition 2014;112:203-213.
  8. In a review of 343 studies, researchers at Washington State University found that organic crops had 17% higher antioxidant levels, including flavanones, flavonols and anthocyanins; less pesticide residues; and lower levels of the toxic metal cadmium compared to conventional produce. British Journal of Nutrition 2014;July 14th.
  9. In a study from the University of Copenhagen where people were given sugar-sweetened beverages or beverages sweetened with sugar substitutes, only the sugar-sweetened beverage group gained weight. American Journal of Clinical Nutrition 2014;100:36-45.
  10. When a woman is depressed, she turns to highly processed, energy-dense snack foods, while a man turns to the same foods when he’s feeling good, according to a study from the National Institute of Health and Medical Research in Paris. Journal of Nutrition 2014;144:1264-1273.
  11. According to a study from Sapienza University in Rome, the antioxidants in dark chocolate (including the polyphenols) might help people suffering from reduced blood flow to the legs (i.e., peripheral artery disease caused by a narrowing of the arteries that carry blood from the heart to the legs.) Journal of the American Heart Association 2014;July 2nd.
  12. Patients with Alzheimer’s disease have elevated blood levels of homocysteine, but taking B vitamins, which are known to lower this compound, did not slow the progression of the disease in a study from Oxford University in England. American Journal of Clinical Nutrition 2014;June 25th.
  13. More than half of diners use calorie information on menus if it is provided, state researchers at the Centers for Disease Control and Prevention. Morbidity and Mortality Weekly Report 2014;July 11th.
  14. The omega-3s in fish oil increase nitric oxide and decrease oxidation in the cells lining the blood vessels, thus reducing damage to this tissue and possibly lowering atherosclerotic risk, according to a study on mice at Sun Yat-sen University in the People’s Republic of China. DHA-fortified canola oil increases HDL-cholesterol, and lowers triglycerides and blood pressure, state researchers at the University of Manitoba. British Journal of Nutrition 2014;112:145-153/American Journal of Clinical Nutrition 2014;100:88-97.
  15. People diagnosed with colon cancer live longer when they consume a diet rich in milk products, according to a study from the American Cancer Society’s epidemiology research program. However, these people also are leaner, more physically active, eat less red meat, and include more fruits and vegetables in their diet, so is it the milk or the lifestyle? Journal of Clinical Oncology 2014;June 23rd.
  16. People who consume nuts two or more times a week have a 56% lower risk for all-cause mortality compared to those who seldom or never eat nuts, report researchers at the University of Navarra in Spain. Nutrition 2014;March 12th.
  17. People who include yogurt in their daily diet have a lower risk for being overweight or obese, state researchers at the University of Navarro in Spain. Nutrition, Metabolism & Cardiovascular Disease 2014;June 15th.
  18. Dropping a few pounds helps curb hot flashes in menopausal women, according to a study from the University of Pittsburgh School of Medicine. Menopause 2014;June 23rd.
  19. Low vitamin D status raises the risk for schizophrenia, according to studies from Isfahan University of Medical Sciences in Iran and Columbia University Medical Center in New York. Journal of Clinical Endocrinology & Metabolism 2014;jc.2014-1887/Schizophrenia Research 2014;156:15-22.
  20. Researchers at Marshall University in West Virginia caution that health professionals should consider vitamin D and calcium supplementation for all seniors to help prevent falls. West Virginia Medical Journal 2014;110:10-12. Supplements of lutein, zeaxanthin, and meso-zeaxanthin improved macular pigment and visual function in a group of patients with early age-related macular degeneration, according to a study from the Dublin Institute of Technology in Ireland. Retina 2014;May 30th.
  21. Vitamin C supplementation might help reduce the oxidative damage and endothelial dysfunction caused by high blood levels of homocysteine, according to a study from Adnan Mederes University in Turkey. Experimental and Technological Pathology 2014;July 16th.
  22. Staying fully hydrated improves both cognition and mood, according to a review of the research from the University of Reading, U.K. British Journal of Nutrition 2014;111:1841-1852.
  23. The phytochemicals, including polyphenols and flavonoids, in greenhouse-grown herbs, such as oregano and rosemary, help to reduce blood sugar as effectively as anti-diabetic drugs, according to researchers at the University of Illinois at Urbana-Champaign. Journal of Agriculture & Food Chemistry 2014;June 13th.
  24. Low blood and hair levels of calcium, magnesium, and potassium and high levels of sodium are associated with an increased risk for hypertension, according to a study from the University of Sindh, Pakistan. Clinical Laboratory 2014;60:463-474.
  25. High blood levels of folic acid were associated with a lower risk for glaucoma in a group of 31,2010 women, suggesting that homocysteine may play a damaging role in this disease, state researchers at Brigham & Women’s Hospital in Boston. JAMA Ophthalmology 2014;132:549-559.

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