Vitamin D not linked to semen quality

Vitamin D not linked to semen quality
Vitamin D deficiency is taking blame for a growing list of health problems. Weak sperm, however, may not be one of them, hints new research.

There has been increasing interest in the importance of optimal vitamin D concentrations in recent years, and low vitamin D has been associated with a higher risk of several negative health outcomes.

Too little vitamin D has been linked to osteoporosis, autoimmune diseases such as multiple sclerosis and some common cancers. But no one has yet looked for a link between vitamin D and the quality of a man's semen. Blood levels of vitamin D, which is manufactured in the skin in response to sunlight and can be consumed in some foods, can vary widely around the world.