Infertility is a condition of reproductive system in which an individual is unable to conceive. In other words, it is a condition that prevents conception even after 12 or more months of unprotected sexual intercourse or when a woman is unable to carry her pregnancy to full term. Nature has a cure for many of our diseases. It holds good for infertility also. Foods such as shell-fish, nuts, seeds contain zinc - a key nutrient that facilitates ovulation.