If you are intent on having a boy or a girl, there are some suggested ways to use nutrition as a way to determine your baby’s gender. There is a theory that if you eat a diet rich in potassium (like bananas), you likely will have a boy. Furthermore, skipping breakfast all together seems to increase your chances of having a girl. This theory suggests that girls are the more likely outcome when fewer calories are consumed around the time of conception. In one British study, boys resulted when the mothers took in approximately 300 more milligrams of potassium and 180 more calories as compared the mothers who had girls.