Just as people should properly hydrate and fuel themselves for a long run, some foods are better than others for pre-sex meals. No matter what you chose, wait at least a couple hours after a big meal for optimal results. "If you eat right before you have sex, now your body's trying to digest its food and, at the same time, trying to perform," says Brad Davidson, performance strategist, certified nutritionist, and author of The Stark Naked 21-Day Metabolic Reset. Some of the foods to avoid are obvious, others may be too tempting to resist, and a couple can help in small doses but hurt if you overindulge. Here's your guide.