Poor diet causes unhealthy sperm

Learn More. Eat well, finish better. Deficiencies in folate, along with low levels of vitamin B6 and vitamin B12, are linked with DNA damage in sperm through raised levels of a chemical called homocysteine a building block for proteins. Be careful with trans fats eat less fried junk food. Skip to: Main Navigation Main Content. Evidence shows that obese men have lower concentrations of testosterone and sex-hormone binding globulin, both important hormones in the sperm production cycle. Male infertility is common.