News
Adequate iron supply may improve cognitive performance
25 March 2013
According to a new US study, an insufficient iron status of the body can impair cognitive functions, such as planning ability, in college women.
03 December 2012
People with high vitamin D blood levels may have a decreased risk of developing multiple sclerosis, suggests a new Swedish study.
In the observational study, the vitamin D concentrations of blood samples from 164,000 participants – the majority pregnant women – living in northern Sweden were measured and those who developed multiple sclerosis (MS) were documented (1). The blood samples of people who developed MS were matched with at least two control samples of healthy people collected on the same date. The study results showed that parti-cipants with the highest blood levels of vitamin D (above 30 ng/ml) were 61% less likely to develop MS over an average period of nine years than people with lower vitamin D levels. No protective effect was observed for children whose mothers had higher vitamin D levels during pregnancy.
The researchers commented that this lack of evidence for protective effects of vitamin D consumption during early pregnancy suggests that its protective effects may play a role later in pregnancy and beyond.
Another study compared birth data from 151,978 MS patients in countries located at various distances from the equator, with the variable being that people living in countries closer to the equator would get natural sunlight for longer periods during the year (2). The study found a significant increase in MS risk in babies born in April and May and a significantly lower risk among those born in October and November. The results suggest that women who gave birth in autumn, after having enjoyed sunlight during the summer months while pregnant, actually lowered their risk of having a baby who would later develop the disease.
The researchers concluded that vitamin D supplementation is necessary in pregnant women who live in countries where ultraviolet light levels are low between October and March, conditions that are similar to living in the northern U.S. states during the winter.
25 March 2013
According to a new US study, an insufficient iron status of the body can impair cognitive functions, such as planning ability, in college women.
15 July 2012
The precise dietary requirements for various vitamins have been controversial since their discovery in the late 1800s and early 1900s. Early recommendations were based on the amounts needed to avoid so-called “diseases of deficiency”
19 January 2011
A mixture of essentialfatty acids and vitamin E may make the body less sensitive to a hormone blamed for pre-menstrual syndrome, according to a new Brazilian study.