30 May 2011
Men with high vitamin D blood levels have a higher sperm motility compared with vitamin D deficient men, according to a new Danish study.
The study explored the correlation between sperm motility and serum vitamin D levels in 300 healthy men (1). The results showed that men with high vitamin D levels, up to 75 nmol/l, had a significantly higher sperm motility compared with men deficient in vitamin D, i.e. levels below 25 nmol/l.
The researchers commented that these findings are not sufficient to determine whether vitamin D supplements may improve sperm quality in normal or infertile males. This study is only one in a series of studies to determine if vitamin D is necessary for male reproduction. More research is needed to identify relevant factors and conduct placebo-controlled trials to clarify whether vitamin D supplements could be beneficial for infertile men.
Several studies have indicated positive associations between various treatments such as antioxidants, zinc, various vitamins and semen quality. However, there is currently no known medical treatment proved to improve semen quality in randomized controlled trials.
4 July 2013
A high-dose supplementation with vitamin D may be an easy adjunct therapy for depression and major cardiovascular risk factors among women with type 2 diabetes, reports a new US study.
25 November 2013
New data again shows that the highest prevalence of multiple sclerosis can be found in countries with the least amount of days with sun exposure, which is related to the body’s own vitamin D synthesis.
20 April 2016
A new review from China concludes that polyunsaturated fatty acids may be an effective therapy for patients with the dry eye syndrome.
