Magnesium, Iron, Zinc… Do we really need to take supplements?

Chronic fatigue, cramps, brittle nails, or persistent stress can be linked to magnesium, iron, or zinc deficiencies. While diet remains the primary source, certain situations warrant targeted supplementation. Discover which minerals to prioritize, when, and which products you can find on Pharmaplusfrance.store.

Why are magnesium, iron, and zinc often considered?

Magnesium: Involved in over 300 enzymatic reactions, it participates in energy metabolism and nervous system regulation (de Baaij JHF et al., Physiol Rev, 2015). A significant portion of French people do not meet recommended daily intakes, especially during periods of stress or intense physical activity (Brown MA et al., 2022 — source to be verified).

Iron: Essential for oxygen transport, even a deficiency without anemia (low ferritin) can cause fatigue and decreased physical capacity (Houston BL et al., 2018).

Zinc: A cofactor for numerous enzymes, it plays a key role in immunity, wound healing, and protein synthesis (Prasad AS, 2008).

When is supplementation justified?

Magnesium

• In cases of persistent fatigue, stress, cramps, or sleep disturbances
• Preferred forms: bisglycinate, citrate, sometimes combined with vitamin B6

Iron

• Supplementation to be considered in case of confirmed deficiency by a blood test (low ferritin), even without anemia, under medical advice
• Gentle formulations, ideally combined with vitamin C to facilitate absorption (Houston BL et al., 2018)

Zinc

• Useful in cases of acne, decreased immunity, hair loss, or fragile nails
• Recommended forms: zinc gluconate, picolinate, or bisglycinate

What the scientific literature shows

• Iron: A systematic review of randomized trials showed an improvement in fatigue in iron-deficient but non-anemic adults (Houston BL et al., 2018)
• Zinc: Prasad's seminal review (2008) documents the role of zinc in cellular immunity and the consequences of a deficiency (Prasad AS, 2008)
• Magnesium: The review by de Baaij et al. (2015) summarizes the physiological role of magnesium and the effects of a deficiency on the nervous and muscular systems

Practical advice

• Magnesium cure: several weeks, ideally in the evening
• Iron should be taken with a vitamin C-rich food, avoid calcium at the same time
• Zinc: ideally in the morning or at lunch
• A prior blood test (iron, magnesium) is recommended before any prolonged supplementation, especially for iron

Products available on Pharmaplusfrance.store

• Calm Magnesium Glycinate, 90 capsules (Natural Vitality) — magnesium bisglycinate, high digestive tolerance
• Iron 18 mg (Ferrochel), Vegetarian Capsules – Non-Constipating Iron Bisglycinate (NOW Foods) — gentle formulation for the digestive mucosa
• High Absorption Zinc Bisglycinate (Doctor's Best) — for immunity and skin health

Conclusion

Supplementation with magnesium, iron, or zinc can improve general well-being in cases of proven deficiency. Iron, in particular, requires prior medical advice. These minerals should be chosen in well-tolerated formulations suitable for your profile.

Scientific references

1. Brown MA et al., Magnesium insufficiency among healthy French adults: prevalence and health consequences, Nutrients. 2022. (source to be verified)
2. Houston BL et al. Efficacy of iron supplementation on fatigue and physical capacity in non-anaemic iron-deficient adults: a systematic review of randomised controlled trials. BMJ Open. 2018;8(4):e019240. (PubMed)
3. Prasad AS. Zinc in Human Health: Effect of Zinc on Immune Cells. Mol Med. 2008;14(5-6):353-357. (PubMed Central) — corrected reference: author was initially misattributed ("Gibson RS" instead of Prasad AS).
4. de Baaij JHF, Hoenderop JGJ, Bindels RJM. Magnesium in Man: Implications for Health and Disease. Physiol Rev. 2015;95(1):1-46. (PubMed)
5. Marié D. et al., Zinc supplementation and skin health outcomes: a controlled trial, J Dermatol Treat. 2019. (source to be verified)

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