Chia seeds might be small in size, but they pack impressive amounts of nutrients. In the olden days, the Mayan people of old Mexico used Chia seeds as a source of strength. In fact, chia is the Mayan word for power. The small seeds are an excellent source of protein, fiber, antioxidants, and omega-3 fatty acids. Their hardy nature makes them low in calories, and the only calories present are the ones that lower the risk of heart attack or strokes.