Who Needs Magnesium the Most?

Magnesium is an essential mineral involved in hundreds of enzymatic reactions, including energy production, nervous system signaling, muscle contraction and bone health. Although dietary recommendations exist, many people in modern societies fail to meet recommended intakes because of food choices, soil depletion and increased physiological demands.

Who is at higher risk?

Certain populations have consistently higher magnesium needs or are more likely to lose magnesium. These include:

• Athletes: Prolonged or intense exercise increases magnesium losses through sweat and urine and raises metabolic demand for cellular energy and recovery.
• Pregnant and breastfeeding people: Maternal stores must support fetal growth and milk production, increasing daily requirements.
• Older adults: Absorption may decline with age while chronic conditions and polypharmacy can further impair status.
• People with gastrointestinal disorders: Conditions such as celiac disease, Crohn’s disease, chronic diarrhea or prior bowel surgery can limit magnesium absorption.
• Individuals with metabolic disease: Diabetes and insulin resistance are associated with greater urinary magnesium losses.
• Chronic alcohol users and certain medication users: Alcoholism and long-term use of diuretics, proton-pump inhibitors or other drugs can reduce magnesium levels.
• Those under chronic stress: Psychological stress may increase magnesium turnover and depletion.

Recognizing signs and testing

Symptoms of low magnesium can be non-specific: muscle cramps, fatigue, sleep disturbances, mood changes, irregular heartbeat or tingling sensations. Serum magnesium measures are commonly used in clinical practice but reflect only about 1% of total body magnesium; in some cases red blood cell magnesium or clinical assessment is more informative. If symptoms persist or risk factors are present, discussion with a healthcare professional is advisable to determine appropriate testing and management.

Dietary and supplementation considerations

Food sources rich in magnesium include leafy greens, legumes, nuts, seeds, whole grains and some fish. Improving dietary variety is the first-line approach for many people. When intake or absorption is inadequate, or when physiological needs are increased, supplementation may be considered under clinical guidance. Different forms of magnesium (e.g., magnesium citrate, oxide, bisglycinate) have varying bioavailability and tolerability; a clinician can recommend a form and dose suited to the individual.

For a concise overview of populations who most commonly benefit from attention to magnesium status, see this detailed discussion on who needs magnesium the most. For related nutrient interactions, resources on vitamin C and mental health and a review of which vitamin boosts the immune system can help contextualize overall nutritional strategies. A short external summary of immune-supporting vitamins is also available at Telegraph.

Practical takeaways

Consider magnesium evaluation if you belong to a higher-risk group, experience suggestive symptoms, or use medications known to affect magnesium. Emphasize dietary sources first, and seek professional advice for testing and tailored supplementation. Addressing magnesium within the broader context of diet, sleep, stress management and other micronutrients supports more reliable, long-term health outcomes.