Another popular superfood that can boost your mood is goji berries. These tiny, bright red berries are rich in essential nutrients and powerful antioxidants. Moreover, Goji berries contain Vitamin C, 18 amino acids, 12% of your daily iron requirements, and 5 essential fatty acids. They originated in Chinese medicine practices and are known to improve blood flow and even boost libido. Add dried goji berries to trail mixes, cereals, smoothies, or make Goji tea.