Smoking and Poor Nutrition Affect Fertility.
For couples having difficulty getting pregnant, eating more fruits and vegetables along with not smoking may be good advice. Researchers followed the weekly activities of couples undergoing fertility treatment and found male smoking increased the risk of pregnancy loss, female smoking caused an adverse effect on ovarian reserve, and eating more servings of fruits and vegetables was associated with a greater likelihood of fertilization.
Reproductive Biology and Endocrinology, December 2015