Get enough vitamin D
Fertility in both men and women can benefit from vitamin D. Another vitamin that might raise testosterone levels is this one. Men who were vitamin D deficient had a higher likelihood of having low testosterone levels, according to one observational study.
These conclusions were supported by a controlled study involving 65 testosterone-deficient and vitamin D-deficient men. Their testosterone levels increased by about 25% after taking 3,000 IU of vitamin D3 every day for a year. Although there is conflicting evidence, higher levels of vitamin D are associated with increased sperm motility. Research has shown that increased levels of Vitamin D in men can raise the calcium levels of their sperm. The increased calcium levels in sperm then increase motility.