Magnesium citrate
118
labels across all brands · median 217.5 mg/serving
Brand · NIH DSLD
BulkSupplements.com magnesium supplements: 24 products in 7 forms, 40–500 mg of magnesium per serving
24 BulkSupplements.com magnesium products in 7 forms, led by citrate (9); median 313 mg of magnesium per serving. Inside: each product's mg and price.
BulkSupplements.com files 24 on-market magnesium labels using 7 different salts, with a median of 312.5 mg elemental magnesium per serving.
Labels (n)24
Median elemental mg/serving312.5 mg
Priced in gold set4
Mass budget · computed
What BulkSupplements.com'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 | 5 |
|---|---|
| Fit a size 0 or 00 capsule | 5 |
| Require the largest standard size, 000 | 0 |
| Exceed every standard capsule | 0 |
Method and the corpus-wide figure: label mass-budget audit.
Salt portfolio · as filed
Which magnesium salts BulkSupplements.com uses
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| citrate | 9 | 11.3–16.16% | 619–885 mg |
| aspartate | 3 | 7.49–15.64% | 639–1,335 mg |
| hydroxide | 3 | 41.68% | 240 mg |
| gluconate | 2 | 5.86% | 1,706 mg |
| glycinate | 2 | 11.83–14.1% | 709–845 mg |
| malate | 1 | 12.63–15.54% | 644–792 mg |
| oxide | 1 | 60.32% | 166 mg |
Composition across the portfolio · as filed
What BulkSupplements.com puts in the capsule besides magnesium
- 8 labels use a gelatin shell.
Label declarations · as filed
What BulkSupplements.com claims on its labels
Filed declarations across this brand's labels: 5 distinct filed entries across 24 NIH DSLD labels, counted 2026-10-17; these are manufacturer statements.
- Gluten Free — on 24 of 24 labels
- Dairy Free — on 23 of 24 labels
- Adult (18 - 50 Years) — on 22 of 24 labels
- Sugar Free — on 19 of 24 labels
- Adult Female (18 - 50 Years) — on 2 of 24 labels
What is not known · as of 2026-11-02
Gaps in the record for BulkSupplements.com
- 3 of 24 labels do not name the magnesium salt in the filed record, so no compound mass can be computed for them.
- 20 of 24 labels have no US retail listing matched as of 2026-11-02. That is a matching gap on our side, not evidence of unavailability.
Labels 24
| Magnesium BHB PowderNIH DSLD · Label 329630 · Powder | form not mapped yet | 150 mg | 67 | 10.05 g | Not tracked yet |
| Magnesium BHB PowderNIH DSLD · Label 329631 · Powder | form not mapped yet | 105 mg | 167 | 17.54 g | Not tracked yet |
| Magnesium BHB PowderNIH DSLD · Label 329633 · Powder | form not mapped yet | 150 mg | 333 | 49.95 g | Not tracked yet |
| Magnesium CitrateNIH DSLD · Label 310736 · Powder | form not mapped yet | 400 mg | 285 | 114.00 g | Not tracked yet |
| Magnesium CitrateNIH DSLD · Label 310737 · Powder | form not mapped yet | 400 mg | 142 | 56.80 g | Not tracked yet |
| Magnesium CitrateNIH DSLD · Label 310738 · Powder | form not mapped yet | 400 mg | 28 | 11.20 g | Not tracked yet |
| Magnesium CitrateNIH DSLD · Label 310739 · Powder | form not mapped yet | 400 mg | 71 | 28.40 g | Not tracked yet |
| Magnesium Citrate 3500 mg CapsulesNIH DSLD · Label 312930 · Capsule | form not mapped yet | 400 mg | 36 | 14.40 g | Pending verification |
| Magnesium Citrate 40 mg SoftgelsNIH DSLD · Label 312975 · Softgel Capsule | form not mapped yet | 40 mg | 120 | 4.80 g | Not tracked yet |
| Magnesium Citrate Capsules 400 mgNIH DSLD · Label 329882 · Capsule | form not mapped yet | 400 mg | 60 | 24.00 g | Not tracked yet |
| Magnesium Citrate SoftgelsNIH DSLD · Label 294412 · Softgel Capsule | form not mapped yet | 80 mg | 150 | 12.00 g | Not tracked yet |
| Magnesium Citrate SoftgelsNIH DSLD · Label 294413 · Softgel Capsule | form not mapped yet | 80 mg | 50 | 4.00 g | Not tracked yet |
| Magnesium D-AspartateNIH DSLD · Label 310740 · Powder | form not mapped yet | 49 mg | 1,471 | 72.08 g | Pending verification |
| Magnesium D-AspartateNIH DSLD · Label 310742 · Powder | form not mapped yet | 49 mg | 368 | 18.03 g | Not tracked yet |
| Magnesium D-AspartateNIH DSLD · Label 310743 · Powder | form not mapped yet | 49 mg | 735 | 36.02 g | Not tracked yet |
| Magnesium Gluconate 500 mgNIH DSLD · Label 294869 · Capsule | form not mapped yet | 80 mg | 33 | 2.64 g | Not tracked yet |
| Magnesium Gluconate 500 mgNIH DSLD · Label 294870 · Capsule | form not mapped yet | 80 mg | 100 | 8.00 g | Not tracked yet |
| Magnesium GlycinateNIH DSLD · Label 310750 · Powder | form not mapped yet | 225 mg | 200 | 45.00 g | Not tracked yet |
| Magnesium Glycinate PowderNIH DSLD · Label 329643 · Powder | form not mapped yet | 400 mg | 454 | 181.60 g | Not tracked yet |
| Magnesium HydroxideNIH DSLD · Label 310752 · Powder | form not mapped yet | 410 mg | 1,000 | 410.00 g | Not tracked yet |
| Magnesium HydroxideNIH DSLD · Label 310753 · Powder | form not mapped yet | 410 mg | 100 | 41.00 g | Not tracked yet |
| Magnesium HydroxideNIH DSLD · Label 310754 · Powder | form not mapped yet | 410 mg | 250 | 102.50 g | Not tracked yet |
| Magnesium Malate Capsules 400 mgNIH DSLD · Label 329887 · Capsule | form not mapped yet | 400 mg | 60 | 24.00 g | Verified |
| Magnesium Oxide PowderNIH DSLD · Label 329720 · Powder | form not mapped yet | 500 mg | 599 | 299.50 g | Pending verification |
Forms filed
Compare within a form
Magnesium aspartate
33
labels across all brands · median 200 mg/serving
Magnesium hydroxide
6
labels across all brands · median 124 mg/serving
Magnesium gluconate
14
labels across all brands · median 133 mg/serving
Magnesium glycinate
65
labels across all brands · median 300 mg/serving
Magnesium malate
33
labels across all brands · median 350 mg/serving
Magnesium oxide
108
labels across all brands · median 320 mg/serving
See all brands, all labels, or the priced form tables.
Filed composition facets
4 published excipient facets occur across 24 labels from BulkSupplements.com in the NIH DSLD records, counted 2026-10-17.
FDA recall records for this firm
The FDA enforcement database holds 2 recall records naming BulkSupplements.com (queried 2026-10-19); 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 |
|---|---|---|---|---|---|
| 2025-09-24 | Class II | Brand name: BulkSupplements.com Generic name: Inositol. Dosage: 1 gram. Form: Powder. Route of administration: Oral. Packaging is flexible plastic. Net Wt.: 8.8 oz (250 grams), 1.1 lbs (500 grams), 2.2 lbs (1 kilogram). UPC: 849720004147, 849720004154, 849720004161 Firm Name/Address: Hard Eight Nutrition LLC dBa BulkSupplements.com 640 W Lake Mead Pkwy Henderson, NV 89015, USA. Recalling firm: HARD EIGHT NUTRITION LLC. Description does not name a magnesium product. | Finished product possibly contaminated with pathogenic Staphylococcus aureus. | Terminated | H-0619-2025 |
| 2018-08-22 | Class II | BulkSupplements.com Glucosamine Sulfate Potassium; 100 grams, 250 grams, 500 grams, 1 kilogram; Stand up zipper pouch bags. Directions: As a dietary supplement, take 1000 mg (scant 1/4 tsp) up to three time daily, or as directed by a physician. Distributed exclusively by: Bulk Supplements.com 7511 Eastgate Road Henderson, NV 89011 Recalling firm: Hard Eight Nutrition LLC. Description does not name a magnesium product. | FDA inspection found two lots of supplements that did not declare shellfish as an ingredient on the product label; shellfish is properly declared on website. | Terminated | F-1827-2018 |
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 4 reports naming BulkSupplements.com as of 2026-10-19. 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.