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Vitamins that come from the sun, it is very vital for men. New research from Italy shows, that vitamin D deficiency can increase the risk of erectile dysfunction. When the researchers tested 143 men with different degrees of erectile dysfunction, they found that nearly half had vitamin D deficiency. Only one in five study subjects had sufficient vitamin D levels.

Researchers also found that men with the most severe cases of erectile dysfunction had vitamin D levels about 24 percent lower than men with mild erectile dysfunction. Vitamin D deficiency can lead to the production of free radicals called superoxide ions, according to study author Alessandra Barassi, M.D., and his research team.
Free radicals can deplete your nitric oxide. Nitric oxide is a molecule that helps your blood vessels function properly. Because nitric oxide is depleted, men become erectile. "Nitric oxide keeps blood vessels relaxed so that blood flow is smooth and men can function normally," says Larry Lipshultz, M.D., a urologist at Men's Health.

If you suffer from erectile dysfunction, ask your doctor to check your vitamin D levels. For patients with erectile dysfunction that has not been too severe, this study recommends supplement consumption of 30 mg / ml or more so that the penis can re-erection.