🟠 Moderate Evidence
Essential minerals orchestrate every major physiological process in the human body, from cardiac rhythm to immune surveillance, according to a 2023 review published in Nutrients. These micronutrients do not function in isolation but rather form an interconnected biological network where deficiency in one element can cascade through multiple organ systems and compromise overall health.
Key takeaways
- Nine essential minerals—calcium, magnesium, zinc, iron, potassium, sodium, copper, iodine, and selenium—regulate at least 300 distinct biochemical pathways in the human body
- Mineral interactions are interdependent; deficiency in one mineral can disrupt multiple systems simultaneously, amplifying health risks
- These nutrients support critical functions including oxygen transport, nerve signaling, immune cell activation, energy metabolism, and hormonal regulation
Study at a Glance
| Source | Nutrients |
| Study type | Narrative review |
| Focus | Systemic roles of mineral micronutrients |
| Publication year | 2023 |
| Scope | Comprehensive review of mineral biochemistry and health implications |
The Nine Essential Minerals and Their Primary Systems
Each mineral supports multiple organ systems; deficiencies cascade across interconnected pathways (data from Nutrients, 2023 review)
Source: Nutrients (2023) | Georgian Medical Journal News
Magnesium: The Quiet Multitasker Sustaining Energy and Repair
Magnesium is required for over 300 biochemical reactions across the body, according to the 2023 Nutrients review. This mineral is central to adenosine triphosphate (ATP) synthesis—the cellular energy currency—and supports DNA repair, protein synthesis, and neuromuscular transmission. Deficiency in magnesium is associated with fatigue, muscle cramping, and impaired metabolic efficiency. Clinical evidence continues to accumulate on the relationship between dietary magnesium intake and cardiovascular and metabolic health outcomes.
Calcium, Zinc, and Iron: The Structural and Functional Anchors
Calcium serves roles beyond bone mineralisation, including nerve impulse transmission, muscle contraction, blood coagulation, and hormone secretion, the 2023 Nutrients review states. Zinc acts as an immunological “on switch,” enabling T-cell activation and antibody production, while also supporting tissue repair and wound healing. Iron’s primary function—binding and transporting oxygen via hemoglobin and myoglobin—makes it indispensable for aerobic metabolism and cognitive function. Without adequate iron, cellular energy production becomes severely compromised, leading to fatigue and reduced exercise tolerance.
Minerals function as an integrated biological network; deficiency in one element can disrupt multiple systems simultaneously, amplifying health risks across cardiovascular, immune, metabolic, and neurological domains.
— Nutrients (2023), Systemic review of mineral biochemistry
Potassium, Sodium, and Electrochemical Stability
Potassium and sodium maintain the electrical and osmotic gradients essential for cardiac rhythm, nerve impulse propagation, and muscle contraction, according to the 2023 Nutrients analysis. The sodium-potassium pump—a fundamental cellular mechanism—continuously regulates fluid balance and resting membrane potential. Imbalances in these two minerals can precipitate arrhythmias, hypertension, and neuromuscular dysfunction. Clinical management of electrolyte disorders remains a cornerstone of acute and chronic disease management.
Selenium, Copper, Iodine, and Phosphorus: Defending and Building
Selenium functions as a cofactor for glutathione peroxidase and thioredoxin reductase—enzymes that defend cells against oxidative damage—and also enables thyroid hormone metabolism, the 2023 review explains. Copper is critical for red blood cell maturation, collagen cross-linking, and antioxidant enzyme function. Iodine serves as the substrate for thyroid hormone synthesis, controlling metabolic rate, growth, and brain development. Phosphorus forms the backbone of DNA, cell membranes, and ATP molecules. Deficiency in any of these minerals can impair immune defence, structural integrity, or metabolic regulation.
What this means
Frequently asked questions
Can mineral deficiencies cause serious health problems?
Yes. Mineral deficiencies can precipitate serious conditions including anaemia (iron), arrhythmias (potassium, magnesium), impaired immune function (zinc, selenium), thyroid dysfunction (iodine), and compromised bone and cognitive health (calcium, magnesium, phosphorus). According to the 2023 Nutrients review, these deficiencies often develop gradually and may not be immediately recognised.
Should I take mineral supplements?
Supplementation should be individualised and guided by clinical assessment, not routine self-medication. The 2023 Nutrients analysis indicates that most people can meet mineral requirements through a diverse, whole-food diet. Certain populations—including those with malabsorption disorders, restrictive diets, or specific clinical conditions—may benefit from targeted supplementation under professional supervision.
Can minerals interact with each other or with medications?
Yes. The 2023 Nutrients review emphasises that minerals form an interdependent network; for example, magnesium absorption is enhanced by vitamin D but inhibited by excess calcium and certain medications. Some antibiotics, bisphosphonates, and diuretics significantly alter mineral balance. Always inform your healthcare provider about supplements, as interactions are common.
As nutritional science advances, the systemic importance of mineral micronutrients continues to be refined. Emerging research is clarifying mineral bioavailability, optimal intake ranges, and the genetic and physiological factors that influence individual mineral requirements. Prioritising adequate mineral status—through dietary diversity, screening of at-risk populations, and evidence-based supplementation where warranted—represents a practical and cost-effective strategy in disease prevention and health optimisation across the lifespan.
Source: Nutrients (2023). The Role of Selected Minerals in Maintaining the Health of the Human Body
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Medically reviewed by Prof. Giorgi Pkhakadze, MD, MPH, PhD. Spotted an error? Contact the editorial team.
