Researchers from the University of Copenhagen tested the quality of the sperm of 340men chosen at random and perform a detailed analysis of these samples in the laboratory, researchers also measured the amount of vitamin D in their blood. The study shows men with adequate vitamin D levels in the body will have a bettersperm when swimming toward the egg, as well as greater speed and more penetrative. If a man lack of vitamin D in the blood of healthy sperm counts will tend to be lowercompared with men who have normal vitamin D levels, the ability to fertilize an egg cell(acrosome reaction) is inhibited and the body’s ability to absorb calcium will also behampered .

Sunlight is the main source of vitamin D which helps regulate levels of calcium andphosphorous to generate healthy bones. Most of the experts recommended amount of vitamin D in the blood is at 75 nmol / l.