Unit 1 Module 3 Magnesium Mastery
Why Magnesium Matters: The Importance of Addressing Magnesium in Health
Welcome to Module 3 of the Introduction to Magnesium in Human Health. In this module, we’ll highlight why magnesium is critical to both preventive health and disease management. You’ll discover the broad spectrum of health areas that magnesium influences and why it is necessary to make magnesium a priority in clinical practice.
Topic 1: Magnesium’s Role in Enzymatic Reactions and biochemical function
Magnesium plays a crucial role in maintaining physiological homeostasis and is involved in over 600 enzymatic reactions within the human body. These reactions are fundamental to essential functions like DNA maintenance and repair, energy production, protein synthesis, blood pressure regulation, nerve and muscle function, and much more [1].
Magnesium is a cofactor for ATP (adenosine triphosphate), the energy currency of the cell. Without magnesium, the body cannot efficiently produce or use energy [2]. Many of these functions, including its role in cellular metabolism, bone health, cardiovascular function, and neurological health, will be explored in detail as we progress through the course. Understanding magnesium’s involvement in these processes is key to appreciating its widespread impact on human health.
Topic 2: Magnesium’s Hierarchical Role in Maintaining Health During Deficiency
Magnesium’s role in health is not just limited to its presence in over 600 enzymatic reactions, but also extends to its critical importance for maintaining physiological balance across different organ systems. When magnesium is deficient, there appears to be a complex hierarchical system for retaining, managing, and distributing the available magnesium to vital body systems and compartments. Although not well understood, this ability to prioritize magnesium homeostasis in times of deficiency reflects the mineral’s hierarchical functionality in the body, and this can be observed when evaluating early signs and symptoms of insufficiency and deficiency [2].
Magnesium deficiency can manifest through a range of symptoms that progress in severity as the condition worsens. In its early stages, individuals may experience:
General weakness
Muscle fasciculations
Loss of appetite
Persistent fatigue
These initial signs are often subtle and may be overlooked. As the deficiency advances, more pronounced symptoms emerge, including:
Muscle contractions and cramps
Numbness and tingling sensations
Anxiety and depression
Coronary spasms
Abnormal heart rhythms
Seizures
In severe cases, magnesium deficiency can significantly disrupt the body’s mineral homeostasis, leading to serious complications such as hypocalcemia (low blood calcium levels) and hypokalemia (low blood potassium levels). This progression highlights the critical role magnesium plays in maintaining overall health and mineral balance within the body. Recognizing these symptoms at various stages can be helpful for timely identification and treatment of magnesium insufficiency, preventing its advancement to more severe and potentially dangerous levels [2].
Chronic low magnesium levels contribute to the development of conditions such as cardiovascular disease, type 2 diabetes, osteoporosis, and neurological disorders. Ensuring adequate magnesium intake is essential for safeguarding against these chronic diseases and promoting overall health [3]. “The existence of subacute or chronic magnesium deficiency is difficult to diagnose. Because the tissues damaged by magnesium depletion are those of the cardiovascular, renal and the neuromuscular systems, early damage is not readily detectable. It is postulated that long-term suboptimal intakes of magnesium may participate in the pathogenesis of chronic diseases of these systems” [4].
In summary, magnesium’s crucial role in the body with functions such as energy production, heart health, nerve conduction, hormone balance, bone health, cognitive stability, and more indicates magnesium’s essential role in sustaining life and health, and highlights why preventing magnesium insufficiency and deficiency is of vital importance [1].
Topic 3: Why Healthcare Providers Should Prioritize Magnesium Assessment
Despite the extensive role magnesium plays in health, it is often underassessed in clinical practice. Magnesium levels are not routinely measured, even though deficiency is relatively common and can have significant health implications [5]. Many signs and symptoms of magnesium deficiency and insufficiency are often overlooked because they can be nonspecific or mimic other conditions. For example, fatigue, muscle cramps, irritability, or even cognitive difficulties are commonly attributed to stress, aging, or other nutritional imbalances, rather than being recognized as potential signs of magnesium deficiency [6].
Additionally, standard blood tests measuring serum magnesium often fail to detect deficiency. Since only about 1% of total body magnesium is found in the blood, normal serum magnesium levels can mask a deeper deficiency in tissues, bones, and muscles [7]. This, combined with the nonspecific nature of magnesium deficiency symptoms, leads to a significant underdiagnosis and inadequate treatment in clinical settings.
Symptoms of magnesium deficiency, such as fatigue, muscle cramps, and abnormal heart rhythms, can be subtle or attributed to other conditions, making routine magnesium assessment vital for early diagnosis and treatment.
Conclusion
In this module, we’ve discussed the critical role of magnesium in maintaining health through its involvement in over 600 enzymatic reactions and its influence on chronic diseases. As healthcare providers, prioritizing magnesium assessment can significantly improve patient outcomes. In the next module, we’ll introduce the key domains where magnesium has the greatest impact on health, setting the stage for more in-depth exploration in future lessons.
References:
1. de Baaij JH, Hoenderop JG, Bindels RJ. Magnesium in man: implications for health and disease. Physiol Rev. 2015 Jan;95(1):1-46.
https://journals.physiology.org/doi/full/10.1152/physrev.00012.2014
2. Fiorentini D, Cappadone C, Farruggia G, Prata C. Magnesium: Biochemistry, Nutrition, Detection, and Social Impact of Diseases Linked to Its Deficiency. Nutrients. 2021 Mar 30;13(4):1136.
https://www.mdpi.com/2072-6643/13/4/1136
3. Swaminathan R. Magnesium metabolism and its disorders. Clin Biochem Rev. 2003 May;24(2):47-66.
https://pmc.ncbi.nlm.nih.gov/articles/PMC1855626/
4. Seelig MS. THE REQUIREMENT OF MAGNESIUM BY THE NORMAL ADULT. SUMMARY AND ANALYSIS OF PUBLISHED DATA. Am J Clin Nutr. 1964 Jun;14(6):242-90.
https://www.sciencedirect.com/science/article/abs/pii/S0002916523199564
5. DiNicolantonio JJ, O'Keefe JH, Wilson W. Subclinical magnesium deficiency: a principal driver of cardiovascular disease and a public health crisis. Open Heart. 2018 Jan 13;5(1):e000668. doi: 10.1136/openhrt-2017-000668. Erratum in: Open Heart. 2018 Apr 5;5(1):e000668corr1.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5786912/
6. Pickering G, et al. Magnesium Status and Stress: The Vicious Circle Concept Revisited. Nutrients. 2020 Nov 28;12(12):3672.
https://www.mdpi.com/2072-6643/12/12/3672
7. Ismail AAA, Ismail Y, Ismail AA. Chronic magnesium deficiency and human disease; time for reappraisal? QJM. 2018 Nov 1;111(11):759-763.
https://academic.oup.com/qjmed/article-abstract/111/11/759/4209351



This is great! I’m looking forward to your next unit. Recently I struggled with PVC’s. My potassium was low and the heart irregularities became more normal when the potassium was back in normal range. However, I still occasionally have PVC’s. What I have figured out is by taking magnesium oxide, I rarely have PVC’s. The thing I’m not real clear on is the different types of magnesium supplements. I’ve found that the PVCs are less with magnesium oxide than magnesium glycinate (which is what I was taking before trying the magnesium oxide). I’m not sure why that is.
Adding potassium citrate seems to help round out the picture. I don’t know the science, except minerals need to have a balance.