Magnesium is essential for over 600 enzymatic processes, not the least of which involves energy production. Aspartic acid is also a critical component of energy production at the cellular level. Scientists have found that binding magnesium to aspartic acid produces an effective magnesium supplement with additional energy support not offered by other forms. Swanson Magnesium Aspartate is a great alternative for those concerned about muscle fatigue and neuromuscular health.