It's really unfortunate that the vast majority of the population turns to stimulants instead of looking to whole foods for a boost of invigorating energy. I guess part of the problem is that humans are generally lazy and would rather take the "magic pill" to fix all their problems.
But when it comes to having more energy the irony is that the stimulating foods such coffee, sugar, and energy drinks actually fatigue your body in the long run. Sure they give you a quick jolt of energy but then their real effects are felt as they wear down your adrenal glands, disrupt your blood sugar, and create a huge crash after the initial high. Essentially they are drugs. They are not foods that give us energy.
- wheat grass - if you haven't tried wheat grass then you're missing out on some big time energy and nutrition. Growing it and juicing yourself can be a bit of a pain but you can easily get a "shot" at most health food stores or juice bars. 1 oz of wheat grass juice packs more nutrition than 2.5 lbs of green leafy veggies!
- raw cacao (nibs or powder) - incredible source of magnesium, antioxidants, and life force. These give me a natural high that can last for hours without the subsequent like you would get from coffee and caffeinated beverages.
- goji berries - another incredible source of antioxidants and polysaccharides that improve cell-to-cell communication. I actually combine these with my raw cacao nibs and complementary tastes work really well together.