Label arithmetic · NIH DSLD snapshot 2026-08-10
How much magnesium is in magnesium orotate? 7.3% by weight, so 100 mg of magnesium takes 1,376 mg of orotate
7.3% of magnesium orotate is magnesium: 100 mg takes 1,376 mg of salt, 1.9 size 00 capsules. No ranked US price (Nov 2).
Magnesium orotate is 7.3% elemental magnesium, so 100 mg of magnesium needs 1,376 mg of compound, about 1.9 size 00 capsules at 0.8 g/mL powder density. 0 of 3 capsule labels naming orotate alone exceed size 000. A single ranked offer is $0.7937 per 100 mg of declared elemental magnesium (prices observed 2026-10-26 to 2026-11-02); one offer gives no median.
computed from chemical formula
Chart data
| Displayed chart text |
|---|
| oxide |
| 60.3% |
| hydroxide |
| 41.7% |
| carbonate |
| 24.8–28.8% |
| chloride |
| 12.0–25.5% |
| sulfate |
| 9.9–20.2% |
| citrate |
| 11.3–16.2% |
| aspartate |
| 7.5–15.6% |
| malate |
| 12.6–15.5% |
| glycinate |
| 11.8–14.1% |
| glycerophosphate |
| 12.5% |
| lactate |
| 10.2–12.0% |
| taurate |
| 8.9% |
| L-threonate |
| 8.3% |
| orotate |
| 7.3% |
| gluconate |
| 5.9% |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-11-02 · chemistry 2026-10-17
Recompute for your bottle
Enter your container price, declared elemental amount and servings to calculate a price per 100 mg for this bottle.
Same-salt comparison appears here.
How much elemental magnesium is actually in 100, 200 or 400 mg of orotate?
Magnesium orotate is 7.3% elemental magnesium by mass (Mg(C₅H₃N₂O₄)₂, molar mass 334.49). Magnesium orotate has a molar mass of 334.49 against magnesium's 24.305, so 7.3% of its mass is magnesium. Every 100 mg of elemental magnesium from it needs 1,376 mg of the compound, calculated 2026-10-17.
computedThis defined salt has one calculated elemental fraction from its formula.
Chart data
| Displayed chart text |
|---|
| orotate |
| 5,502 |
| oxide |
| 663 |
| Elemental magnesium | orotate required | Size 00 capsules that much powder fills |
|---|---|---|
| 100 mg | 1,376 mg | 2 size 00 capsules (1.9 capsules' worth of powder) |
| 200 mg | 2,751 mg | 4 size 00 capsules (3.8 capsules' worth of powder) |
| 400 mg | 5,502 mg | 8 size 00 capsules (7.5 capsules' worth of powder) |
Source · Chemical formula and atomic masses · Calculated 2026-08-10; powder density 0.8 g/mL, the top of the usual 0.6–0.8 range · release 2026-08-10-f441aa9f · CSV · method
Estimated salt mass versus assumed capsule capacity
0 of 3 capsule labels naming orotate alone are above the assumed size 000 capacity at powder density 0.8 g/mL, against 8 of 137 capsule labels across the audited registry. 3 fit size 0 or 00 and 0 need size 000. This is computed with a stated assumption of powder density 0.8 g/mL, the top of the usual 0.6–0.8 range and the most favorable mass per capsule.
computed with assumption3 capsule labels naming orotate alone can be checked against capsule sizes.
Chart data
| Displayed chart text |
|---|
| orotate |
| fits 3 of 3 |
| needs 000 0 of 3 |
| exceeds 0 of 3 |
| all audited |
| fits 82 of 137 |
| needs 000 47 of 137 |
| exceeds 8 of 137 |
| Mass budget verdict | Labels |
|---|---|
| Fits size 0 or 00 | 3 of 3 |
| Needs size 000 | 0 of 3 |
| Exceeds size 000 | 0 of 3 |
A size 00 capsule holds about 730 mg of powder at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range; a size 000 about 1,100 mg.
Source · NIH DSLD labels; mass balance · Recognized salt only; 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is a label called orotate really orotate, or mixed with another salt?
0 of 4 labels naming orotate also name another form as of 2026-08-10. The table counts partner names on filed labels; a named blend does not establish the elemental contribution of each salt. Naming one salt is not the same as fitting it: 0 of 3 capsule labels naming orotate alone exceed size 000. Open the full label list to inspect individual records.
measuredA defined molecular formula permits a calculated fraction.
| Other named form | Labels |
|---|---|
| No other named form | 4 labels reviewed |
Source · NIH DSLD magnesium rows · Labels naming this salt; 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
I need 200 mg of actual magnesium. What changes in compound weight and capsules between orotate and other forms?
For 200 mg of elemental magnesium, orotate needs 2,751 mg of compound, against oxide at 332 mg. Size 00 holds about 730 mg at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range. Each row uses the stated elemental fraction; hydration ambiguity stays a range, and any price comparison remains within a single salt.
computed with assumption| Salt | Elemental fraction | Compound for 200 mg | Size 00 capsules |
|---|---|---|---|
| Magnesium orotate | 7.3% | 2,751 mg | 4 size 00 |
| Magnesium glycinate | 11.8–14.1% | 1,418–1,691 mg | 2–3 size 00 |
| Magnesium citrate | 11.3–16.2% | 1,238–1,770 mg | 2–3 size 00 |
| Magnesium oxide | 60.3% | 332 mg | 1 size 00 |
| Magnesium malate | 12.6–15.5% | 1,287–1,584 mg | 2–3 size 00 |
Source · Chemical formulas and capsule capacity · Calculated 2026-08-10; powder density 0.8 g/mL, the top of the usual 0.6–0.8 range · release 2026-08-10-f441aa9f · CSV · method
What does orotate cost per 100 mg of elemental magnesium, and which label is cheapest by declared elemental magnesium?
A single ranked offer is $0.7937 per 100 mg of declared elemental magnesium (prices observed 2026-10-26 to 2026-11-02); one offer gives no median. One offer means one ASIN and observation date; No observed price is on review. The ranked price uses the label's declared elemental amount.
computedFewer than three offers are ranked, so no distribution band is shown.
Chart data
| Displayed chart text |
|---|
| n=1 |
| median $0.7937 |
| Rank | Label | EC100 | Match and observation |
|---|---|---|---|
| 1 | SuperSmart Magnesium Orotate 1500 mg | $0.7937 per 100 mg | confirmed; 2026-11-02 · $25.00 for 90 units |
Verified: a row matched to the label by hand in August 2026 that passes every automatic check. Confirmed: brand, salt and dose match the label in the September 2026 check. Only these two are ranked; rows on review are not.
single offer
Source · Amazon via licensed data provider · Unique ASIN and observation date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method
What else is in orotate labels, including stearate, shells and fillers?
8 named excipients appear in the top displayed list among 4 labels naming orotate as of 2026-08-10. A listed ingredient is a filed name, not a quantified mass; open the underlying label to check context and capsule material.
measured
Chart data
| Displayed chart text |
|---|
| magnesium stearate |
| 3 |
| cellulose |
| 1 |
| dicalcium phosphate |
| gelatin |
| gum acacia |
| hypromellose |
| microcrystalline cellulose |
| silicon dioxide |
| microcrystalline |
| Filed ingredient | Labels |
|---|---|
| magnesium stearate | 3 of 4 |
| cellulose | 1 of 4 |
| dicalcium phosphate | 1 of 4 |
| gelatin | 1 of 4 |
| gum acacia | 1 of 4 |
| hypromellose | 1 of 4 |
| microcrystalline cellulose | 1 of 4 |
| silicon dioxide | 1 of 4 |
Source · NIH DSLD full label ingredient fields · Labels naming this salt; 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What did studies measure about absorption and side effects for orotate?
No study involving orotate is in our PubMed checked registry of 16 as of 2026-08-10. No side effect outcome for this salt can be reported from this set; use the linked registry to inspect the included studies.
measuredNo study involving orotate is in our registry as of 2026-11-02.
| Year | Study design and measured outcome | PubMed |
|---|---|---|
| No included study | No measurement for this salt | Registry checked 2026-08-10 |
Source · PubMed checked study registry · Registry checked 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels file orotate, and how much do they declare per serving?
4 labels name orotate; 4 have a computable elemental amount per serving, with median 81 mg, against the full list linked below. The first eight are shown here. Values are filed elemental magnesium, not an assay of the contents, in the NIH DSLD snapshot 2026-08-10.
measured
Chart data
| Displayed chart text |
|---|
| P10 45 mg |
| P50 81 mg |
| P90 172 mg |
| Label | Declared elemental per serving | NIH DSLD |
|---|---|---|
| KAL Magnesium Orotate 200 | 200 mg | 322919 |
| LifeLink Magnesium Orotate 775 | 56 mg | 11812 |
| SuperSmart Magnesium Orotate 1500 mg | 105 mg | 332705 |
| Swanson Magnesium Orotate 40 mg | 40 mg | 308659 |
Source · NIH DSLD on-market labels · Labels naming this salt; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Where do these numbers come from, and how do I cite or correct them?
The 4 recognized orotate labels come from the NIH DSLD snapshot 2026-08-10. Chemistry was calculated from molecular formulas on 2026-10-17; observed retail prices are checked 2026-11-02. The linked CSV carries only values displayed on this page. Cite the release and report a claim if a filed label or calculation needs correction.
computed| Layer | Source and date |
|---|---|
| Labels | NIH DSLD snapshot 2026-08-10 |
| Chemistry | Formula calculation 2026-10-17 |
| Retail | Prices observed 2026-10-26 to 2026-11-02 |
Source · NIH DSLD; chemical formulas; Amazon via licensed data provider · Release 2026-08-10-f441aa9f · release 2026-08-10-f441aa9f · CSV · method