Brand · NIH DSLD snapshot 2026-08-10
Bronson magnesium supplements: 2 products, 21–100 mg of magnesium per serving
2 Bronson magnesium products: Magnesium Citrate with Vitamin B6, 100 mg per tablet, and Potassium & Magnesium Aspartate, 21 mg per capsule. Prices inside.
Bronson files 2 on-market magnesium labels in NIH DSLD using 2 salts, most often citrate (1 of 2); 0 of 1 audited capsule label are above the assumed size 000 capacity at powder density 0.8 g/mL, against 8 of 137 across the registry. Median declared amount 61 mg per serving; 0 of 2 labels have a matched US price as of 2026-11-02. Snapshot 2026-08-10.
computed from filed labels
Chart data
| Displayed chart text |
|---|
| citrate |
| 1 |
| aspartate |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-11-02 · chemistry 2026-10-17
Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.
Size 000: The largest standard capsule, about 1,100 mg of powder at 0.8 g/mL, the top of the usual 0.6–0.8 range.
Estimated salt mass versus assumed capsule capacity
0 of 1 audited capsule label are above the assumed size 000 capacity at powder density 0.8 g/mL, against 8 of 137 across the registry. 1 fit size 0 or 00 and 0 need size 000, at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range and the most favourable hydration.
computed with assumption
Chart data
| Displayed chart text |
|---|
| Bronson |
| fits 1 of 1 |
| needs 000 0 of 1 |
| exceeds 0 of 1 |
| all audited |
| fits 82 of 137 |
| needs 000 47 of 137 |
| exceeds 8 of 137 |
| Verdict | Bronson | All audited capsule labels |
|---|---|---|
| Fits size 0 or 00 | 1 of 1 | 82 of 137 |
| Needs size 000 | 0 of 1 | 47 of 137 |
| Exceeds size 000 | 0 of 1 | 8 of 137 |
Source · NIH DSLD labels; mass balance · recognized salt only; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which magnesium salts does Bronson use, and how much compound does each need?
Bronson files 2 salts, most often citrate (1 of 2) across 2 labels; for 100 mg of magnesium the lightest of them needs 619 mg of compound against 1,335 mg for the heaviest.
computed| Salt | Labels | Elemental fraction | Compound per 100 mg Mg |
|---|---|---|---|
| citrate | 1 | 11.3–16.2% | 619–885 mg |
| aspartate | 1 | 7.5–15.6% | 639–1,335 mg |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How do Bronson's prices compare within each salt?
No Bronson label has a matched US retail price in our price collection as of 2026-11-02, against 2 labels on file.
computed| Label | Salt | Per 100 mg | Same-salt median | Observed |
|---|---|---|---|---|
| No matched price as of 2026-11-02 |
Source · Amazon via licensed data provider; NIH DSLD · unique ASIN × date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method
Does the FDA hold recall or adverse event records naming Bronson?
The FDA enforcement data queried 2026-10-19 holds 0 recall records naming Bronson, 0 of them about a magnesium product. CAERS holds adverse event reports naming the brand, as it does for 143 of 273 brands here; openFDA states that “there is no certainty that the reported event (adverse event) was actually due to the product” and that reports “cannot be used to estimate the incidence of these events.”
measured| Recall | Date | Reason | Status |
|---|---|---|---|
| No record as of 2026-10-19 |
FDA record register and matching method
Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method
What else goes into Bronson's labels, and what do they declare?
2 of 2 Bronson labels list magnesium stearate, 1 use a gelatin shell and 1 a cellulose shell; 1 distinct filed declarations appear across them. Listed ingredients are filed names, not quantities.
measured| Filed entry | Labels |
|---|---|
| magnesium stearate | 2 of 2 |
| croscarmellose sodium | 1 of 2 |
| dicalcium phosphate | 1 of 2 |
| gelatin | 1 of 2 |
| hypromellose | 1 of 2 |
| microcrystalline cellulose | 1 of 2 |
| polyethylene glycol | 1 of 2 |
| titanium dioxide | 1 of 2 |
1 additional rows
| Filed entry | Labels |
|---|---|
| Adult (18 - 50 Years) | 2 of 2 |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which Bronson labels are on file, and what does each declare?
Bronson has 2 on-market labels in the NIH DSLD snapshot 2026-08-10, with a median declared amount of 61 mg of elemental magnesium per serving; each row opens the label's own arithmetic.
measured| Label | Declared per serving | Salt | Capsule verdict |
|---|---|---|---|
| Bronson Magnesium Citrate with Vitamin B6 | 100 mg | citrate | not applicable |
| Bronson Potassium & Magnesium Aspartate | 21 mg | aspartate | fits 0 |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method