Magnesium Deficiency in Europe — Key Statistics 2026
Magnesium is involved in over 300 enzymatic processes — and ranks among the most underestimated nutrient deficiencies in Europe. According to the German National Nutrition Survey II (NVS II) from the Max Rubner Institute, 26% of men and 29% of women in Germany do not meet the DGE recommendation. European review studies estimate that 10–30% of the population is clinically relevant insufficient [Rosique-Esteban et al. 2018]. This page aggregates verified figures from NVS II, EFSA, DGE, and current cohort studies.
Last updated: May 2026 · YMYL: no treatment recommendations, epidemiological data only.
Key Figures at a Glance
| Indicator | Value | Group / Region | Source |
|---|---|---|---|
| Intake below DGE recommendation, men | 26% | Adults DE (NVS II, n ≈ 20,000) | MRI NVS II 2008 |
| Intake below DGE recommendation, women | 29% | Adults DE (NVS II) | MRI NVS II 2008 |
| Clinically relevant insufficiency, Europe | 10–30% | General population, Europe | Rosique-Esteban et al. 2018 (Nutrients) |
| DGE reference value (men 25–51 y.) | 350 mg/day | D-A-CH reference values 2021 | DGE 2021 |
| DGE reference value (women 25–51 y.) | 300 mg/day | D-A-CH reference values 2021 | DGE 2021 |
| Mean intake, men (Germany) | 323 mg/day | Adults DE (NVS II) | MRI NVS II 2008 |
| Mean intake, women (Germany) | 261 mg/day | Adults DE (NVS II) | MRI NVS II 2008 |
Insufficiency by Age Group (NVS II)
The NVS II from the Max Rubner Institute (2008, n ≈ 20,000) is the most recent nationally representative dietary survey in Germany. Adolescents and young women, as well as older adults, show an above-average share of intake below the DGE reference value.
| Age group | Men < reference | Women < reference | Source |
|---|---|---|---|
| 14–18 years | ~56% | ~53% | MRI NVS II 2008 |
| 19–24 years | ~32% | ~42% | MRI NVS II 2008 |
| 25–50 years | ~22% | ~27% | MRI NVS II 2008 |
| 51–64 years | ~21% | ~24% | MRI NVS II 2008 |
| 65+ years | ~29% | ~35% | MRI NVS II 2008 |
Particularly notable: adolescents (14–18 years) show the highest prevalence at over 50% — during this phase, magnesium requirements rise due to growth while food quality is often poorer (fast food, processed products with low mineral content). Older adults (65+) are also a risk group, since intestinal absorption declines with age [DGE 2021].
Structural Problem: Soil Depletion and Processing Losses
The decline of magnesium content in soils and foods is a Europe-wide documented phenomenon. Intensive agriculture, acid rain, and heavy nitrogen fertilization have reduced the magnesium content of cropland soils across parts of Europe over decades. At the same time, substantial amounts are lost during food processing.
Whole wheat flour contains ~138 mg/100 g Mg; white flour (type 405) only ~22 mg/100 g — a loss of about 80% [DGE nutrient database].
Magnesium is water-soluble: boiling leafy and root vegetables leaches a substantial share into the cooking water, depending on the vegetable and method. Steaming instead of boiling markedly reduces the loss.
The EFSA (European Food Safety Authority) set European magnesium reference values in 2015: 350 mg/day for men and 300 mg/day for women (Average Requirements). The DGE reference values (2021) largely agree with the EFSA figures. Both authorities note that the estimates are based on balance studies and account for individual absorption rates (typically 30–50%) [EFSA 2015, EFSA Journal 13(7):4186].
Risk Groups for Magnesium Insufficiency
Certain population groups have a markedly elevated risk of not meeting their magnesium requirement — whether due to increased need, reduced absorption, or increased loss.
| Group | Mechanism | Deficiency prevalence | Source |
|---|---|---|---|
| Type 2 diabetics | Renal Mg loss from hyperglycemia, often on multiple medications (diuretics) | 25–38% | Rosique-Esteban 2018 |
| Regular alcohol consumers | Increased renal excretion, malnutrition | ~30% | Rosique-Esteban 2018 |
| PPI users (proton pump inhibitors) | Reduced intestinal Mg transport due to lower gastric acidity | elevated risk | William & Danziger 2016 (World J Nephrol) |
| Older adults (> 65 years) | Age-related reduced intestinal absorption, increased renal excretion | ~35% (women 65+) | MRI NVS II 2008 |
| Endurance athletes | Increased Mg loss through sweat and urine; can raise requirement by 10–20% | elevated risk | Nielsen & Lukaski 2006 (Magnesium Research) |
Methodology & Sources
All figures cited on this page come exclusively from verifiable primary sources. No figure was interpolated or used without a citation.
| Label | Full reference | URL |
|---|---|---|
| MRI NVS II 2008 | Max Rubner Institute (2008): National Nutrition Survey II. Federal Ministry of Food and Agriculture. n ≈ 20,000, nationally representative. | mri.bund.de |
| DGE 2021 | Deutsche Gesellschaft für Ernährung: D-A-CH reference values for nutrient intake — Magnesium. 2nd edition 2021. | dge.de/wissenschaft/referenzwerte/magnesium |
| Rosique-Esteban 2018 | Rosique-Esteban N et al. (2018): Dietary Magnesium and Cardiovascular Disease: A Review with Emphasis in Epidemiological Studies. Nutrients 10(2):168. PMID 29389872. | pubmed.ncbi.nlm.nih.gov/29389872 |
| Vormann 2003 | Vormann J (2003): Magnesium: nutrition and metabolism. Mol Aspects Med 24(1–3):27–37. PMID 12537987. | pubmed.ncbi.nlm.nih.gov/12537987 |
| William & Danziger 2016 | William JH, Danziger J (2016): Proton-pump inhibitor-induced hypomagnesemia: Current research and proposed mechanisms. World J Nephrol 5(2):152–157. PMID 26981439. | pubmed.ncbi.nlm.nih.gov/26981439 |
| Nielsen & Lukaski 2006 | Nielsen FH, Lukaski HC (2006): Update on the relationship between magnesium and exercise. Magnesium Research 19(3):180–189. PMID 17172008. | pubmed.ncbi.nlm.nih.gov/17172008 |
| EFSA 2015 | EFSA NDA Panel (2015): Dietary reference values for magnesium. EFSA Journal 13(7):4186. | efsa.onlinelibrary.wiley.com |
Last reviewed: May 2026. Data available under CC BY 4.0.
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