Form table · observed 2026-08-10
Magnesium citrate
Verified median EC100 is $0.1331. Candidate matches awaiting review are kept in a separate section.
DSLD labels118
Verified median EC100$0.1331
Screened observed range$0.0344–$0.2168
The observed range includes 19 screened retail matches, including rows pending verification. It is descriptive, not a cross-form ranking.
Verified rows 9
| Natures Plus | KalmAssure Magnesium Powder 400 mg UnflavoredNIH DSLD · Label 187441 | 400 mg | 60 | $13.95Per container · Price observed 2026-09-07, Amazon | $0.058124.00 total elemental g/container | Verified |
| Nature Made | Magnesium CitrateNIH DSLD · Label 179947 | 250 mg | 60 | $10.89Per container · Price observed 2026-09-07, Amazon | $0.072615.00 total elemental g/container | Verified |
| GNC | Magnesium Powder LemonNIH DSLD · Label 243047 | 325 mg | 84 | $22.99Per container · Price observed 2026-09-07, Amazon | $0.084227.30 total elemental g/container | Verified |
| Solgar | Magnesium CitrateNIH DSLD · Label 219453 | 420 mg | 30 | $15.29Per container · Price observed 2026-09-07, Amazon | $0.121312.60 total elemental g/container | Verified |
| GNC | Magnesium 250 mg Strawberry Natural FlavorNIH DSLD · Label 243072 | 250 mg | 30 | $9.98Per container · Price observed 2026-09-07, Amazon | $0.13317.50 total elemental g/container | Verified |
| Nature Made | Magnesium CitrateNIH DSLD · Label 179948 | 250 mg | 30 | $10.89Per container · Price observed 2026-09-07, Amazon | $0.14527.50 total elemental g/container | Verified |
| Pure Encapsulations | Magnesium (Citrate)NIH DSLD · Label 201495 | 150 mg | 90 | $20.50Per container · Price observed 2026-09-07, Amazon | $0.151913.50 total elemental g/container | Verified |
| Pure Encapsulations | Magnesium (Citrate/Malate)NIH DSLD · Label 184671 | 120 mg | 90 | $20.50Per container · Price observed 2026-09-07, Amazon | $0.189810.80 total elemental g/container | Verified |
| Nature's Sunshine | Magnesium ComplexNIH DSLD · Label 255360 | 184 mg | 50 | $19.95Per container · Price observed 2026-09-07, Amazon | $0.21689.20 total elemental g/container | Verified |
Pending verification 10
These candidate retail-to-label matches remain separate from verified rows and are not included in verified medians.
| Best Naturals | Magnesium Citrate 200 mgNIH DSLD · Label 269854 | 400 mg | 125 | $17.21Per container · Price observed 2026-09-11, Amazon | $0.034450.00 total elemental g/container | Pending verification |
| Nature's Lab | Magnesium Soothe 350 mg Raspberry LemonNIH DSLD · Label 207246 | 350 mg | 100 | $17.99Per container · Price observed 2026-08-10, Amazon | $0.051435.00 total elemental g/container | Pending verification |
| Solgar | Magnesium CitrateNIH DSLD · Label 219466 | 420 mg | 60 | $15.29Per container · Price observed 2026-09-11, Amazon | $0.060725.20 total elemental g/container | Pending verification |
| Solgar | Magnesium CitrateNIH DSLD · Label 241135 | 420 mg | 60 | $15.29Per container · Price observed 2026-09-11, Amazon | $0.060725.20 total elemental g/container | Pending verification |
| LES Labs | Magnesium CitrateNIH DSLD · Label 320259 | 225 mg | 120 | $20.99Per container · Price observed 2026-09-11, Amazon | $0.077727.00 total elemental g/container | Pending verification |
| KAL | Magnesium Citrate 160 mg PowderNIH DSLD · Label 55106 | 160 mg | 139 | $21.99Per container · Price observed 2026-08-10, Amazon | $0.098922.24 total elemental g/container | Pending verification |
| NutriCology | Magnesium CitrateNIH DSLD · Label 235550 | 170 mg | 180 | $31.79Per container · Price observed 2026-09-11, Amazon | $0.103930.60 total elemental g/container | Pending verification |
| Pure Encapsulations | Magnesium (Citrate)NIH DSLD · Label 294013 | 150 mg | 180 | $36.50Per container · Price observed 2026-09-11, Amazon | $0.135227.00 total elemental g/container | Pending verification |
| Douglas Laboratories | Magnesium CitrateNIH DSLD · Label 232777 | 150 mg | 90 | $19.00Per container · Price observed 2026-09-11, Amazon | $0.140713.50 total elemental g/container | Pending verification |
| KAL | Malic Acid 1500 mg with MagnesiumNIH DSLD · Label 253228 | 500 mg | 30 | $21.95Per container · Price observed 2026-08-10, Amazon | $0.146315.00 total elemental g/container | Pending verification |
Compare citrate with other salts
13 published comparisons include magnesium citrate as of 2026-09-13; each row gives the other salt's magnesium fraction and compound mass for 100 mg elemental magnesium from the chemistry model.
- Magnesium citrate vs magnesium glycinate: 11.83–14.1% magnesium by mass; 709–845 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium oxide: 60.32% magnesium by mass; 166 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium malate: 13.2–15.54% magnesium by mass; 644–758 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium aspartate: 8.42% magnesium by mass; 1,188 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium carbonate: 24.78–28.83% magnesium by mass; 347–404 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium gluconate: 5.86% magnesium by mass; 1,706 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium chloride: 11.96–25.53% magnesium by mass; 392–836 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium taurate: 8.85% magnesium by mass; 1,130 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium hydroxide: 41.68% magnesium by mass; 240 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium l-threonate: 8.25% magnesium by mass; 1,212 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium orotate: 7.27% magnesium by mass; 1,376 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium lactate: 12.01% magnesium by mass; 833 mg compound per 100 mg elemental magnesium.
- Magnesium citrate vs magnesium sulfate: 9.86–20.19% magnesium by mass; 495–1,014 mg compound per 100 mg elemental magnesium.
Excipients most common in citrate labels
5 published excipient facets below have the highest frequencies among 212 labels mentioning magnesium citrate in the NIH DSLD records, counted 2026-09-13; each label enters an ingredient count once.
- magnesium stearate: 78 of 212 labels.
- silicon dioxide: 70 of 212 labels.
- microcrystalline cellulose: 54 of 212 labels.
- cellulose: 46 of 212 labels.
- hypromellose: 39 of 212 labels.
The metric
What EC100 measures
EC100 = container price ÷ (elemental mg per serving × servings per container ÷ 100)
It normalizes the declared elemental amount to a 100 mg unit. It does not score ingredients, quality, or outcomes.