A real man thanks to vitamin D
Sufficiently high doses of vitamin D have a positive influence on testosterone levels
Testosterone is the most important male sexual hormone. In males it is mainly responsible for the development of the sex organs, the formation and maintenance of the typical male sexual characteristics, sperm production and the controlling of male desire.
Stimulated by UV radiation, 90% of vitamin D in the body is produced by the skin. An average vitamin D level of 30 nanograms per millilitre of blood (30 ng/ml) represents the scientific value from which vitamin D has a sufficiently positive effect. Optimal values are between 40 and 60 ng/ml.
The Sunlight Research Forum (SRF) is a non-profit organisation with its headquarters in the Netherlands. Its aim is to make the latest medical and scientific findings concerning the effects of moderate UV radiation on humans accessible to the general public.
A summary of the "Wehr E, Pilz S, Boehm BO, März W, Obermayer-Pietsch B. (Department of Internal Medicine, Division of Endocrinology and Nuclear Medicine, Medical University Graz, Graz, Austria): Association of vitamin D status with serum androgen levels in men" study can be downloaded from the SRF website www.sunlightresearchforum.eu
Über Sunlight Research Forum
The Sunlight Research Forum (SRF) is a not-for-profit organisation based in The Netherlands. SRF's aim is to help bring to the fore, the latest medical and scientific information on the effects of moderate UV exposure on man. It takes time, often decades, for new scientific ideas to be accepted and assimilated, first into the general body of scientific knowledge and finally into policy. We want to reduce this time to a minimum so that the benefits of research can lead to a better understanding of UV effects on man and will become available to the public without any unnecessary delay. We hope to provide policy makers with correct information on which to base national health policy and individuals with better information on which to base choices about their lifestyles.
New research and well founded ideas on moderate UV exposure both indoor and outdoor will be presented and discussed in the Sunlight Research Forum by people working in the health disciplines, by academics and by journalists.