Magnesium is an essential mineral that can become depleted during heavy drinking. It plays a key role in energy production, nerve function, and the regulation of nutrients in the body. Replenishing magnesium can help relieve headaches, fatigue, and muscle weakness associated with hangovers.
Reference: Cinar V, Mogulkoc R, Baltaci AK, Polat Y. "Adverse effects of chronic ethanol consumption on physical performance, energy, and liver function: The role of magnesium." Alcohol and Alcoholism, 2003.