Brand · NIH DSLD snapshot 2026-08-10
Windmill magnesium supplements: 2 products, 200–325 mg of magnesium per serving
2 Windmill magnesium products: Magnesium Citrus Flavor, 325 mg per serving, and Magnesium Glycinate 200 mg, 100 mg per capsule. Prices inside.
Windmill files 2 on-market magnesium labels in NIH DSLD using no salt named in the filed records; no capsule label names one salt and one amount that can be checked against capsule sizes. Median declared amount 263 mg per serving; 1 of 2 labels has a matched US price as of 2026-11-02. Snapshot 2026-08-10.
computed from filed labelsData 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 Windmill 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 | Windmill | 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
How do Windmill's prices compare within each salt?
1 of 2 Windmill 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 |
|---|---|---|---|---|
| Windmill Magnesium Glycinate 200 mg | glycinate | $0.1338 | $0.1889 | 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 Windmill?
The FDA enforcement data queried 2026-10-19 holds 1 recall record naming Windmill, 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-0385-2021 | 2021-04-14 | Vitamin D3 stability sample analyzed and found to be less than 100% of label claim. | 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 Windmill's labels, and what do they declare?
0 of 2 Windmill labels list magnesium stearate, 0 use a gelatin shell and 1 a cellulose shell; 6 distinct filed declarations appear across them. Listed ingredients are filed names, not quantities.
measured| Filed entry | Labels |
|---|---|
| silicon dioxide | 2 of 2 |
| cellulose | 1 of 2 |
| citric acid | 1 of 2 |
| maltodextrin | 1 of 2 |
| natural flavors | 1 of 2 |
| rice flour | 1 of 2 |
| Vegan | 2 of 2 |
| Vegetarian | 2 of 2 |
4 additional rows
| Filed entry | Labels |
|---|---|
| Adult (18 - 50 Years) | 2 of 2 |
| Gluten Free | 2 of 2 |
| Dairy Free | 2 of 2 |
| Sugar Free | 2 of 2 |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which Windmill labels are on file, and what does each declare?
Windmill has 2 on-market labels in the NIH DSLD snapshot 2026-08-10, with a median declared amount of 263 mg of elemental magnesium per serving; each row opens the label's own arithmetic.
measured| Label | Declared per serving | Salt | Capsule verdict |
|---|---|---|---|
| Windmill Magnesium Citrus Flavor | 325 mg | not resolved | not computable |
| Windmill Magnesium Glycinate 200 mg | 200 mg | not resolved | not computable |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method