L-Aspartic Acid plays a vital role in energy production. It is one of the components neccessary to move high-energy NADH mollecules from the main body of a cell to its mitochondria, or primary energy-production areas. Once there, the NADH is used to generate ATP, the energy fuel that powers all the cell's activities. Besides Enhanceing with energy production, L-Aspartic acid is a major excitatory neurotransmitter.