Topic of the Month
1 August 2016
01 September 2014
According to a new study from Norway, older people with low blood vitamin E concentrations seem to have an increased risk of developing hip fracture.
The observational study measured serum vitamin E (alpha-tocopherol) concentrations in 1,168 men and women aged 65–79 years who suffered hip fractures during up to 11 years (1). The study results showed a linear increasing risk of hip fracture with lower serum alpha-tocopherol concentrations, with a 51% higher risk for participants with the lowest blood levels compared to participants with the highest levels.
The researchers commented that oxidative stress has been suggested as contributing to the development of osteoporosis and fractures (2). Vitamin E has strong antioxidant properties which can potentially counteract damage to bones. Experimental results indicate that in addition to its antioxidant effect, alpha-tocopherol could have a possible direct role in bone remodeling and promoting osteoclast fusion, thus stimulating bone resorption (3). The evidence from human studies is very limited, but reviews conclude that higher vitamin E intakes seem to be associated with increased bone mineral density (BMD) and decreased fracture risk (4, 5). The new results confirm those of an earlier study with 654 older men (6). The dietary intake of vitamin E is relatively low in many countries, e.g., in the Nordic countries (7).
1 August 2016
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.
24 April 2013
According to a new study, increased intakes of antioxidant nutrients are associated with a lower risk of developing heart failure.