...it's as simple as that! You've made up your mind but your body's condition may be preventing the conception of your chosen gender. Without a doubt, the human body is an incredible thing. Making wise, informed decisions about your diet now -- before conception -- will greatly increase your odds of having a boy or girl when you conceive. Changing your diet is proven in clinical research to be 96% effective in choosing the gender of your next baby. The results can be dramatic for women who have decided to try and conceive a child of a certain sex by altering their diets.