Brand · NIH DSLD snapshot 2026-08-10
Carlson magnesium supplements: 7 products in 2 forms, 125–400 mg of magnesium per serving
7 Carlson magnesium products in 2 forms, led by oxide (2); median 350 mg of magnesium per serving. Inside: each product's mg and price.
Carlson files 7 on-market magnesium labels in NIH DSLD using 2 salts, most often oxide (2 of 7); no capsule label names one salt and one amount that can be checked against capsule sizes. Median declared amount 350 mg per serving; 1 of 7 labels has a matched US price as of 2026-11-02. Snapshot 2026-08-10.
computed from filed labels
Chart data
| Displayed chart text |
|---|
| oxide |
| 2 |
| glycinate |
| 1 |
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
No Carlson capsule label has a single resolved salt and one declared amount as of 2026-08-10, so no capsule verdict is counted.
computed with assumption| Verdict | Carlson | All audited capsule labels |
|---|---|---|
| Fits size 0 or 00 | no audited capsule label | 82 of 137 |
| Needs size 000 | no audited capsule label | 47 of 137 |
| Exceeds size 000 | no audited capsule label | 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 Carlson use, and how much compound does each need?
Carlson files 2 salts, most often oxide (2 of 7) across 7 labels; for 100 mg of magnesium the lightest of them needs 166 mg of compound against 845 mg for the heaviest.
computed| Salt | Labels | Elemental fraction | Compound per 100 mg Mg |
|---|---|---|---|
| oxide | 2 | 60.3% | 166 mg |
| glycinate | 1 | 11.8–14.1% | 709–845 mg |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How do Carlson's prices compare within each salt?
1 of 7 Carlson labels has a matched US price as of 2026-11-02; each is compared with the median of its own salt, never across salts, per 100 mg of declared elemental magnesium.
computed| Label | Salt | Per 100 mg | Same-salt median | Observed |
|---|---|---|---|---|
| Carlson Magnesium Gels 400 mg | oxide | $0.0636 | $0.0293 | 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 Carlson?
The FDA enforcement data queried 2026-10-19 holds 3 recall records naming Carlson, 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 |
|---|---|---|---|
| F-2157-2017 | 2017-05-03 | Product contains elevated levels of patulin. | Terminated |
| F-2158-2017 | 2017-05-03 | Product contains elevated levels of patulin. | Terminated |
| F-1253-2023 | 2023-07-26 | Product contains high levels of patulin (above 50ppb). | Terminated |
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 Carlson's labels, and what do they declare?
3 of 7 Carlson labels list magnesium stearate, 3 use a gelatin shell and 1 a cellulose shell; 4 distinct filed declarations appear across them. Listed ingredients are filed names, not quantities.
measured| Filed entry | Labels |
|---|---|
| beeswax | 3 of 7 |
| cellulose | 3 of 7 |
| magnesium stearate | 3 of 7 |
| glycerin | 2 of 7 |
| carnauba wax | 1 of 7 |
| citric acid | 1 of 7 |
| croscarmellose sodium | 1 of 7 |
| hypromellose | 1 of 7 |
4 additional rows
| Filed entry | Labels |
|---|---|
| Adult (18 - 50 Years) | 7 of 7 |
| Gluten Free | 7 of 7 |
| Dairy Free | 3 of 7 |
| Vegetarian | 1 of 7 |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which Carlson labels are on file, and what does each declare?
Carlson has 7 on-market labels in the NIH DSLD snapshot 2026-08-10, with a median declared amount of 350 mg of elemental magnesium per serving; each row opens the label's own arithmetic.
measured| Label | Declared per serving | Salt | Capsule verdict |
|---|---|---|---|
| Carlson Chelated Magnesium Glycinate 200 mg | 200 mg | glycinate | not applicable |
| Carlson Magnesium 350 mg | 350 mg | not resolved | not computable |
| Carlson Magnesium 350 mg | 350 mg | not resolved | not computable |
| Carlson Magnesium Gels 400 mg | 400 mg | oxide | not applicable |
| Carlson Magnesium Gels 400 mg | 400 mg | oxide | not applicable |
| Carlson Magnesium Gels 400 mg | 400 mg | not resolved | not computable |
| Carlson Magnesium Soft Chews 125 mg Natural Berries & Creme Flavor | 125 mg | not resolved | not computable |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method