For good reason, breakfast is widely touted as the most important meal of the day. Studies have shown repeatedly that eating a healthy, balanced breakfast results in a good mood, increased energy and improved memory skills. Remember those helpful B vitamins found in dairy products? Eggs are also rife with the critical substance. Serve a couple of eggs on the side of folate-rich oatmeal for a filling and nutritious breakfast. The folic acid found in oatmeal is powerful because it produces a neurotransmitter called dopamine, which many studies have linked with increased pleasure. Whole-wheat toast or whole-wheat pancakes are other grain options with high amounts of folate [source: Martha Stewart].