Lever
Lifestyle
- Regular physical activity
- Stress management
- Adequate hydration
Critical Thresholds
Seek immediate emergency care if magnesium < 0.5 mmol/L or > 1.5 mmol/L due to risk of severe neuromuscular or cardiovascular complications.
Critical Low0.5 mmol/LCritical High1.5 mmol/L
Blutwerte · Marker
Magnesium
Serum Magnesium · Mg
Elektrolyte
- Einheit:
- mmol/L
- Abbreviation
- Mg2+
The test quantifies the concentration of magnesium ions (Mg2+) in the blood serum.
Reference Ranges
Reference
0.7–1mmol/L
0.5
0.7
0.8
1
1.5
LowNormalHigh
Reference
Optimal
Critical
Unit · mmol/LReference ranges may vary slightly by laboratory and population demographics.
Overview
Übersicht
Magnesium (Mg2+) is a vital electrolyte and the fourth most abundant cation in the human body, acting as a cofactor in over 600 enzymatic reactions. It plays a crucial role in energy metabolism, neuromuscular function, cardiovascular health, bone integrity, and immune defense. Serum magnesium levels are typically measured to assess magnesium status, although they may not fully reflect total body magnesium stores. Clinically, magnesium is important for diagnosing and managing conditions such as hypomagnesemia, which is prevalent in individuals with certain comorbidities and can lead to cardiovascular, neuromuscular, and other organ dysfunctions. Low magnesium levels are associated with hypertension, type 2 diabetes, osteoporosis, migraines, depression, and chronic inflammation. In the context of athletic performance, biohacking, and longevity, magnesium is recognized for supporting cardiometabolic resilience, skeletal strength, and neurological stability, potentially contributing to healthy aging. However, researchers observed that serum magnesium levels may not reliably indicate intracellular magnesium status, and factors such as renal function can influence measurements. Additionally, magnesium levels can be affected by dietary intake, chronic diseases, medication use, and lifestyle factors, which should be considered when interpreting test results.
Klinische Bedeutung
Reduced serum magnesium levels (hypomagnesemia) can indicate conditions such as hypertension, type 2 diabetes, and cardiovascular issues. Elevated levels (hypermagnesemia) are less common and often associated with renal impairment or excessive intake of magnesium-containing medications.
Dynamics
Trend Interpretation
Rising Values
Progressively rising magnesium levels may suggest renal impairment or excessive supplementation. Re-test in 4 weeks if levels are outside the optimal range.
Falling Values
Progressively falling magnesium levels may indicate dietary insufficiency or increased losses due to medications or chronic conditions.
Re-test Interval
4 weeks if outside optimal range
Etiology
Causes — High & Low
Cause
Elevated Levels
- Renal impairment
- Excessive magnesium supplementation
- Use of magnesium-containing medications
- Dehydration
Cause
Low Levels
- Inadequate dietary intake
- Chronic diseases
- Medication use (e.g., diuretics)
- Excessive gastrointestinal or renal losses
Protocol
How to Optimize
Lever
Nutrition
- Increase intake of leafy greens
- Consume nuts and seeds
- Include whole grains in diet
Lever
Supplementation
- Magnesium citrate
- Magnesium glycinate
- Magnesium oxide
Note:
Consult a healthcare provider before beginning any supplementation, especially if you have underlying health conditions.
Testing Guidelines
✓Fasting Not Required
✓Not Time-Sensitive
Testing Frequency
Annually for healthy adults, more frequently if symptoms of deficiency are present.
Interfering Factors
- Recent intense exercise
- Certain medications (e.g., diuretics)
- Alcohol consumption
Related Peptides & Hormones
Parathyroid Hormone
hormone or peptideMay affect
Open Research Questions
Current research suggests that the reference ranges for serum magnesium may not accurately reflect total body magnesium stores, leading to underdiagnosis of hypomagnesemia. Researchers have not yet established optimal targets for magnesium levels in various populations, particularly in aging individuals. Additionally, clinical questions remain unanswered regarding the most effective strategies for magnesium replacement therapy and the role of magnesium as a biomarker for aging and chronic disease management.
24 Research Publications
844
Total Citations
4
Human/RCT
6.8
Avg. Influence
2025
Latest
Sort
Filter
01Top
#01
Magnesium metabolism in health and disease.
ReviewInfluence25.0
380
Researchers discussed magnesium's vital role in health, noting that deficiency can lead to various health issues. They highlighted the limitations of current testing methods for assessing magnesium status, emphasizing the need for better diagnostic tools.
02Top
#02
Magnesium in clinical medicine.
ReviewInfluence8.0
187
Researchers explored the physiological roles of magnesium and its implications in clinical medicine. The study found that magnesium deficiency is linked to several diseases and that new measurement technologies have increased interest in its therapeutic potential. It discusses specific conditions where magnesium plays a critical role.
03Top
#03
Chronic magnesium deficiency and human disease; time for reappraisal?
ReviewInfluence3.0
74
This review reappraised chronic magnesium deficiency's association with major health disorders. Researchers found that serum magnesium levels often do not reflect total body magnesium stores, raising questions about the recognition and treatment of deficiency in at-risk populations.
04
#04
Recommendation on an updated standardization of serum magnesium reference ranges.
Rosanoff Andrea, et al. · European journal of nutrition · 2022
ReviewInfluence11.0
67
This study addressed the need for standardization in serum magnesium reference ranges. Researchers found significant variability in current cut-off values for hypomagnesemia, which may lead to underdiagnosis of magnesium deficiency in clinical settings.
Key findings
- 01Researchers observed that only 2 out of 43 institutions used the proposed low cut-off of 0.85 mmol/L to define low magnesium status.
- 02They found that many reference ranges include individuals with chronic latent magnesium deficit, potentially misdiagnosing their magnesium status.
- 03The study highlights the urgent need for standardization to ensure accurate diagnosis and awareness of magnesium-related health risks.
05
#05
Magnesium-to-Calcium Ratio and Mortality from COVID-19.
HumanInfluence4.0
29
Researchers investigated the magnesium-to-calcium ratio in relation to mortality in COVID-19 patients. They found that a ratio ≤0.20 was strongly associated with increased mortality risk. The study highlights the importance of monitoring magnesium levels in critically ill patients.
06
#06
Acquired Disorders of Hypomagnesemia.
ReviewInfluence4.0
25
This review focused on the common occurrence of hypomagnesemia and its clinical manifestations. Researchers observed that hypomagnesemia is often caused by gastrointestinal or renal losses and certain medications. The study discusses the challenges of magnesium replacement and provides recommendations based on clinical experience.
07
#07
Improving diagnosis and treatment of hypomagnesemia.
ReviewInfluence4.0
22
This review examined the importance of magnesium in the body and the prevalence of hypomagnesemia, particularly in patients with comorbid conditions. Researchers found that total serum magnesium is the most commonly used measurement, yet many cases of hypomagnesemia remain undiagnosed. The study highlights the potential of laboratory medicine to improve diagnosis and treatment through better management of test requests and results.
08
#08
Magnesium and healthy aging.
Review
21
Researchers investigated the potential of magnesium as a biomarker of aging. The study found that while magnesium levels decrease with age, current blood markers are unreliable for assessing magnesium status. Alternative methods are discussed, but their clinical application remains limited.
09
#09
[Drug-induced magnesium deficiency].
Review
17
This study explored the impact of drug-induced magnesium deficiency, noting that many medications can lead to hypomagnesemia. Researchers observed that magnesium deficiency is often overlooked in clinical practice, leading to undiagnosed cases. The study highlights the need for better awareness and testing for magnesium levels.
10
#10
The Laboratory and Clinical Perspectives of Magnesium Imbalance.
ReviewInfluence1.0
13
This review highlighted the clinical significance of magnesium imbalance and its role in various bodily functions. Researchers observed that magnesium measurement is often overlooked, despite its importance in electrolyte homeostasis. The study discusses factors affecting magnesium measurement and its implications for patient management.
Publication Trend
Research publications about Magnesium over time
9totalTrack your bloodwork in PepStack
Log lab results, track trends and optimize your biomarkers over time.
Legal Disclaimer
This page is for informational and research purposes only. All information is based on published scientific literature and does not constitute medical advice, diagnosis, or treatment recommendations. Many substances listed may not be approved for human use and may be subject to drug regulation laws (e.g., AMG in Germany, FDA in the US). PepStack does not encourage the use of any substance on humans. Always consult a qualified healthcare professional before making any health-related decisions. Use of this information is entirely at your own risk. PepStack assumes no liability for the accuracy, completeness, or timeliness of the content provided. Full disclaimer