Magnesium aspartate
33
labels across all brands · median 200 mg/serving
Brand · NIH DSLD
Swanson magnesium labels
Swanson files 11 on-market magnesium labels, and 1 of the 4 audited declare more of the named salt than a standard capsule can hold.
Labels (n)11
Median elemental mg/serving312.5 mg
Priced in gold set1
Mass budget · computed
What Swanson's declared salts weigh
A Supplement Facts panel declares the element; the salt carrying it is heavier. Dividing each label's declared magnesium by its salt's elemental fraction gives the powder mass the serving must contain — and whether that fits a capsule.
| Capsule labels audited | 4 |
|---|---|
| Fit a size 0 or 00 capsule | 3 |
| Require the largest standard size, 000 | 0 |
| Exceed every standard capsule | 1 |
Method and the corpus-wide figure: label mass-budget audit.
Salt portfolio · as filed
Which magnesium salts Swanson uses
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| citrate | 2 | 11.3–16.16% | 619–885 mg |
| oxide | 1 | 60.32% | 166 mg |
| aspartate | 1 | 8.42% | 1,188 mg |
| lactate | 1 | 12.01% | 833 mg |
| orotate | 1 | 7.27% | 1,376 mg |
Composition across the portfolio · as filed
What Swanson puts in the capsule besides magnesium
- 9 of 11 labels list magnesium stearate. Stearate is 4.1% magnesium by mass and that magnesium is not on the Supplement Facts line; the amount of stearate is not declared, so it cannot be quantified.
- 7 labels use a gelatin shell.
- 2 labels use a cellulose-based shell.
Label declarations · as filed
What Swanson claims on its labels
Filed declarations across this brand's labels: 6 distinct filed entries across 11 NIH DSLD labels, counted 2026-09-13; these are manufacturer statements.
- Adult (18 - 50 Years) — on 11 of 11 labels
- Vegetarian — on 2 of 11 labels
- Children 4 or More Years of Age — on 1 of 11 labels
- Vegan — on 1 of 11 labels
- Gluten Free — on 1 of 11 labels
- Dairy Free — on 1 of 11 labels
What is not known · as of 2026-09-13
Gaps in the record for Swanson
- 5 of 11 labels do not name the magnesium salt in the filed record, so no compound mass can be computed for them.
- 10 of 11 labels have no US retail listing matched as of 2026-09-13. That is a matching gap on our side, not evidence of unavailability.
Labels 11
| Albion Magnesium & CalciumNIH DSLD · Label 308453 · Capsule | form not mapped yet | 133 mg | 90 | 11.97 g | Not tracked yet |
| Magnesium 200 mgNIH DSLD · Label 202431 · Capsule | oxide | 400 mg | 125 | 50.00 g | Not tracked yet |
| Magnesium AspartateNIH DSLD · Label 308656 · Capsule | form not mapped yet | 133 mg | 90 | 11.97 g | Pending verification |
| Magnesium Citrate 225 mg Super StrengthNIH DSLD · Label 203753 · Tablet or Pill | citrate | 225 mg | Not filed | — | Not tracked yet |
| Magnesium Citrate Powder UnflavoredNIH DSLD · Label 308439 · Powder | form not mapped yet | 630 mg | 58 | 36.54 g | Not tracked yet |
| Magnesium Lactate 84 mgNIH DSLD · Label 308657 · Capsule | form not mapped yet | 84 mg | 120 | 10.08 g | Not tracked yet |
| Magnesium Orotate 40 mgNIH DSLD · Label 308659 · Capsule | form not mapped yet | 40 mg | 60 | 2.40 g | Not tracked yet |
| Magnesium WatermelonNIH DSLD · Label 308655 · Gummy or Jelly | form not mapped yet | Not determinable | 120 | — | Not tracked yet |
| Triple Magnesium Complex 400 mgNIH DSLD · Label 202691 · Capsule | aspartate, citrate, oxide | 400 mg | Not filed | — | Not tracked yet |
| Triple Magnesium Complex 400 mgNIH DSLD · Label 308791 · Capsule | form not mapped yet | 400 mg | 30 | 12.00 g | Not tracked yet |
| Triple Magnesium Complex 400 mgNIH DSLD · Label 337705 · Capsule | form not mapped yet | 400 mg | 300 | 120.00 g | Not tracked yet |
Forms filed
Compare within a form
Magnesium citrate
118
labels across all brands · median 217.5 mg/serving
Magnesium oxide
108
labels across all brands · median 310 mg/serving
See all brands, all labels, or the priced form tables.
Filed composition facets
16 published excipient facets occur across 11 labels from Swanson in the NIH DSLD records, counted 2026-09-13.
- magnesium stearate: 9 of 11 labels.
- gelatin: 7 of 11 labels.
- rice flour: 5 of 11 labels.
- silicon dioxide: 3 of 11 labels.
- citric acid: 2 of 11 labels.
- hypromellose: 2 of 11 labels.
- carnauba wax: 1 of 11 labels.
- croscarmellose sodium: 1 of 11 labels.
- glycerin: 1 of 11 labels.
- hydroxypropyl cellulose: 1 of 11 labels.
- magnesium oxide: 1 of 11 labels.
- maltodextrin: 1 of 11 labels.
- microcrystalline cellulose: 1 of 11 labels.
- stearic acid: 1 of 11 labels.
- titanium dioxide: 1 of 11 labels.
- water: 1 of 11 labels.
FDA recall records for this firm
The FDA enforcement database holds 6 recall records naming Swanson (queried 2026-09-13); 0 of them concern a magnesium product.
These are exact brand-string matches in the recalling-firm field or product description, including other products. A name match does not establish that two similarly named firms are the same legal entity. The recalling firm and recalled product are shown in each row.
| Report date | Class | Product described by FDA | Reason for recall | Status | openFDA record |
|---|---|---|---|---|---|
| 2022-03-23 | Class II | Swanson Ultra: Vitamin B12 Methylcobalamin High Absorption 60 serving per container, Item Code SWU122, UPC 87614-02122. Distributed by Swanson Health Products Fargo, ND 58104. 60 cc green PETE plastic bottle with black 33 induction seal cap Recalling firm: Swanson Health Products, Inc. Description does not name a magnesium product. | Dietary supplement may contain potential metal shavings greater than or equal to 7mm in length. | Terminated | F-0867-2022 |
| 2018-10-03 | Class II | Swanson Ultra, Himalayan Crystal Salt, #SWU403, Net Wt. 35.27 oz. (2.2 lbs) (1,000 grams). Product of Pakistan. Distributed by Swanson Health Products, Fargo, ND 58104. Recalling firm: Swanson Health Products, Inc. Description does not name a magnesium product. | Himalayan Crystal Salt may contain metal wire pieces. | Terminated | F-1985-2018 |
| 2014-09-24 | Class I | Swanson 100% Certified Organic, Carob Powder, Raw Chocolate Substitute, Net wt 1 lb (454 grams), in round 1000 cc High Density Poly-ethylene plastic containers, Product of Italy, Distributed by Swanson Health Products, PO Box 2803, Fargo ND 58108 USA, SWF115. Recalling firm: Swanson Health Products, Inc. Description does not name a magnesium product. | Swanson Certified Organic Carob Powder, item number SWF115 is being recalled due to a potential risk of Salmonella contamination from a raw ingredient used in this product. | Terminated | F-2438-2014 |
| 2014-05-21 | Class I | Swanson Full Spectrum Cilantro (Coriander) Herbal Supplement, 60 capsules, 425 mg, SW1112. UPC 87614-11112 Recalling firm: Swanson Health Products, Inc. Description does not name a magnesium product. | The contract manufacturer has notified Swanson Health Products that Swanson Full Spectrum Cilantro (Coriander) (SW1112) is subject to a recall due to a potential risk of salmonella contamination. | Terminated | F-1936-2014 |
| 2013-11-27 | Class III | Swanson, Premium Brand, Full Spectrum Black Cumin Seed (Nigella Sativa) Dietary Supplement capsules, 400 mg, SW1361, UPS 0 87614 11361 6. Recalling firm: Swanson Health Products, Inc. Description does not name a magnesium product. | Swanson Health Products is recalling two lots of Swanson Premium Full Spectrum Black Cumin Seed (Nigella sativa) Dietary Supplement Capsules. The product was found to be mislabel. Bottles of Black Cumin Seed from these two lots numbers (199399 & 201359) have been found to contain White Cumin Seed (Cuminum cyminum). | Terminated | F-0220-2014 |
| 2012-11-28 | Class III | Swanson Organic, 100% Certified Organic Fennel Seed, Net Wt 6 oz (45 grams), SWF092, UPC 0 87614 24092 3. Recalling firm: Swanson Health Products, Inc. Description does not name a magnesium product. | This is to inform you of a product recall involving 2 lots of Swanson Organic 100% Certified Organic Fennel Seed (SWF092). Some jars of fennel seeds have been found to contain small, red beetle-type insects. | Terminated | F-0705-2013 |
FDA assigns 3 recall classes by the assessed hazard, using the FDA classification definitions, checked 2026-09-13:
- Class I: Exposure to or use of the violating product carries a reasonable probability of serious harm to health or death.
- Class II: Exposure or use may produce temporary or medically reversible harm; the probability of serious harm is remote.
- Class III: Adverse health consequences from exposure or use are unlikely.
The FDA adverse event reporting system (CAERS) holds 257 reports naming Swanson as of 2026-09-13. This is a count of submitted reports across all the firm's products; it is not an incidence rate and implies no causation.
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.