Magnesium: Recovery, Sleep, and Metabolic Support
Clinical summary of magnesium’s role in neuromuscular function, sleep quality, and common deficiency patterns with dosing tips.
Physiologic Role
Magnesium is a cofactor in hundreds of enzymatic reactions, including energy production, muscle contraction, and nervous system regulation. Suboptimal intake is common and can contribute to fatigue, cramps, and poor sleep quality.
Who Is at Risk
- Individuals with high training volume and sweat losses
- People with limited intake of nuts, legumes, and whole grains
- Patients using diuretics or with gastrointestinal malabsorption
Supplement Forms and Dosing
Magnesium glycinate and citrate are generally well absorbed. Typical dosing is 200–400 mg elemental magnesium daily, often taken in the evening to support relaxation.
Safety Notes
Excessive supplementation may cause diarrhea. Renal insufficiency requires caution to avoid accumulation. Clinical monitoring is advised in higher-risk patients.
Bottom Line
Magnesium supplementation is a low-risk, evidence-supported option for patients with inadequate intake or symptoms consistent with low magnesium status.