27 August 2014
A new study from Germany reports that regular increased intakes of the polyphenol resveratrol seem to support memory performance and glucose metabolism in older adults.
In the randomized controlled trial, 46 participants aged between 50 and 75 years performed memory tests before and after they received either 200 mg resveratrol per day of or a placebo for 26 weeks (1). The study results showed that participants who were supplemented with resveratrol had significant improvements in the retention of words over 30 minutes compared with placebo. In addition, neuroimaging data showed that resveratrol led to a significantly increased functional connectivity of the hippocampus. Moreover, resveratrol supplementation was associated with decreased levels of glycated hemoglobin (HbA1c) – a marker of long-term presence of excess glucose in the blood.
The researchers commented that increased resveratrol intakes may be a new strategy to maintain brain health during aging. While earlier research has linked resveratrol intakes to improved blood flow in the brain (2), the new results indicate that the polyphenol may be able to modulate brain function. Resveratrol, found in grapes and red wine has been intensively investigated for potential cardiovascular benefits.
9 September 2013
According to a new US study mandatory folic acid fortification of select cereal grains has led to a near eradication of folate deficiency and related anemia in the elderly.
18 July 2014
According to a new review from Iran significant increases in blood vitamin D concentrations are achieved with daily supplement doses of at least 800 IU for a minimum of 6 to 12 months.
5 January 2012
According to a new study from the Netherlands, low maternal folate status during early pregnancy may be associated with a higher risk of childhood emotional problems.
