Hot Topics: January 2017

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  1. Exposure to bisphenol A (BPA) and other endocrine-disrupting chemicals lowers blood levels of vitamin D, according to a study from the University of Michigan School of Public Health in Ann Arbor. The Journal of Clinical Endocrinology & Metabolism 2016; September 20th.
  2.  A patient at Moran Eye Center at the University of Utah who was taking overdoses of lutein (20 milligrams/day) for years combined with a lutein-rich diet developed crystalline maculopathy, suggesting that while this carotenoid helps lower macular degeneration in doses of 10 milligrams or less, too much for some people might increase other vision problems. JAMA Ophthalmology 2016; October 27th.
  3.  Blood lead levels are considerably lower when children are fed optimal amounts of iron-rich foods, according to a study from the University Hospital of Marrakesh. American Journal of Clinical Nutrition 2016; October 26th.
  4.  A compound in mulberries, called rutin, activates brown adipose tissue or BAT, and might be a useful dietary aid for weight loss, according to a study from the Institute of Zoology at the Chinese Academy of Sciences in Beijing, China. FASEB Journal 2016; October 26th.
  5.  Young children do not clear artificial sweeteners from the blood as quickly as do adults, state researchers at the University of Oxford, who add that these sweeteners are passed to babies in breastmilk potentially influencing a child’s future taste preferences, diet, and metabolic fate. Toxicological & Environmental Chemistry 2016;October 24th.
  6.  Resveratrol at doses of between 25 and 50 milligrams/kilogram body weight strengthened the blood brain barrier, shielding neural tissue from damaging compounds in a study on mice at the Second Hospital of Hebei Medical University in the People’s Republic of China. Journal of Neurophysiology 2016;116:2173-2179.
  7.  Even if a man has a genetic risk for colon cancer, he is at lower risk if he exercises daily, eats a healthy diet, doesn’t smoke, and consumes little or no alcohol, according to a study from the Institute of Cancer Research in London. Genetics in Medicine 2016; October 20th.
  8.  The flavanols in cocoa powder lowered blood triglyceride levels, potentially boosting cardiovascular health. They also helped control inflammation and blood sugar, in a study from Brown University. However, the researchers warn that flavanol levels vary widely in dark chocolate products and people must be careful of the sugar and calories. Journal of Nutrition 2016; October 21st.
  9.  Lifting weights helps boost brain function in people aged 55- to 86-years-old with mild memory and thinking problems, according to a study from the University of Sydney, Australia. Journal of the American Geriatrics Society 2016; October 24th.
  10.  Dietary factors that can trigger a migraine headache include eliminating coffee after consuming it regularly, eating processed foods high in nitrites or monosodium glutamate (MSG), and drinking alcohol, state researchers at the University of Cincinnati College of Medicine. Journal of Head and Face Pain 2016; November 1st.
  11.  More than one in every two Americans suffers from a chronic health condition or substance abuse, according to a study from Emory University in Atlanta. Psychology, Health & Medicine 2016; October 25th.
  12.  Compared to those taking placebos, diabetics who took daily supplements containing 600 milligrams alpha-lipoic acid, 165 milligrams L-carnosin, 7.5 milligrams zinc, and B vitamins showed improvement in glycemic control, lipid levels, and oxidative stress, in a study from the University of Pavia in Italy. International Journal of Molecular Science 2016; October 28th.
  13.  Adding a calcium supplement to the daily routine might help a person lose weight, according to a study from Capital Medical University in Beijing, China. American Journal of Clinical Nutrition 2016;104:1263-1273.
  14.  In a study from the University of Surrey in the UK, teenagers needed 800 – 1200IUs (or 20 to 30 micrograms) of vitamin D daily to maintain adequate vitamin D blood levels during winter months. A study from the University of Copenhagen found that young children between the ages of 4- and 8-years-old need 320 to 800IUs of vitamin D during winter months. American Journal of Clinical Nutrition 2016;104:1301-1309 and 1310-1317.
  15.  According to researchers at the American Cancer Society, being overweight increases the risk for liver cancer. Cancer Research 2016; October 14th.
  16.  A combined supplement of vitamin B12 and the omega-3 fats improved nerve growth factor in the brains of animals and might help improve neurovascular function, according to a study from Bharati Vidyapeeth University in India. Neuroscience 2016; October 13th.
  17.  Researchers at the Royal Free Hospital in London report that some supplements, such as vitamins D and B12, zinc, iron, probiotics, and curcumin, might be useful in the management of patients with inflammatory bowel disease. European Journal of Gastroenterology & Hepatology 2016; 28:1357-1364.
  18.  Folic acid supplementation might be useful in the prevention and treatment of Alzheimer’s disease, according to a study from Tianjin Medical University in China. Molecular Neurobiology 2017;53:6548-6556.
  19.  American children are consuming excessive amounts of sodium and these taste preferences will follow them into adulthood, increasing their risks for cardiovascular disease later in life, state researchers at the Centers for Disease Control and Prevention in Atlanta. Journal of the Academy of Nutrition and Dietetics 2016; November 3rd.
  20. While folate and vitamins B6 and B12 have shown promise in lowering homocysteine levels, a study from Charles University in Prague found that when homocysteine levels are high, older adults show impaired ability to navigate spaces, such as remembering routes or how to find their way through an area. This cognitive defect is amplified when cholesterol is high or folate and vitamin B12 are low. Journal of Alzheimer’s Disease 2016; October 11th.
  21. In a study on mice at the Institute of Chinese Medical Sciences in China, omega-3 supplements from fish oil enhanced clearing of amyloid plaques in the brain, potentially delaying or preventing the onset of Alzheimer’s disease. FASEB Journal 2016; October 7th.
  22. In a study on seniors from the University of Western Australia in Perth, curcumin supplementation protected against memory decline, while the placebo-supplemented group showed progressive cognitive impairment during the study. British Journal of Nutrition 2016;115:2106-2113.
  23. Researchers at the National Institute of Child Health and Human Development in Bethesda, Maryland dispelled the myth that it costs more to eat healthy by showing a healthy diet actually costs slightly less than an unhealthy one. Journal of the Academy of Nutrition and Dietetics 2016; 116:1751-1759.
  24. Nine out of every ten teens in the U.S. don’t get anywhere near enough exercise and this trend worsens after high school, according to a study from Colorado State University. Pediatrics 2016; September 26th.
  25. Along with reducing salt intake and increasing daily exercise, researchers at Shahid Beheshti University of Medical Sciences in Tehran recommend optimal intake of calcium, potassium from fresh produce, and magnesium supplementation for the prevention and treatment of hypertension. Iran Journal of Kidney Disease 2016; 10:237-263.
  26. As blood magnesium levels decrease, the risk for central obesity increases, according to a study on children from the University of Buenos Aires in Argentina. Cardiovascular & Hematological Agents in Medicinal Chemistry 2016;October 29th.
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