Label arithmetic · NIH DSLD 314814
Bluebonnet Liquid Magnesium Citrate Mixed Berry Flavor: 420 mg of magnesium per 15 ml, 32 servings
420 mg of magnesium in each 15 ml, about 32 servings per 16 Fluid Ounce. Citrate is 11.3–16.2% magnesium. Inside: salt per scoop, %DV check.
Bluebonnet Liquid Magnesium Citrate Mixed Berry Flavor declares 420 mg of elemental magnesium per serving as citrate, which means 2,599–3,717 mg of magnesium citrate compound in one 15 ml (1 tablespoon), compared with 1,100 mg in the largest standard capsule; capsule verdicts do not apply to this liquid. No US retail price matched as of 2026-11-02; 17 of the 135 citrate labels in this registry have a matched price. NIH DSLD 314814, label dated 2024-08-22.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 7,167 |
| orotate |
| 5,777 |
| L-threonate |
| 5,091 |
| taurate |
| 4,709 |
| lactate |
| 3,497 |
| glycerophosphate |
| 3,360 |
| glycinate |
| 2,979 |
| malate |
| 2,703 |
| aspartate |
| 2,685 |
| citrate |
| 2,599 |
| sulfate |
| 2,080 |
| chloride |
| 1,645 |
| carbonate |
| 1,457 |
| hydroxide |
| 1,008 |
| oxide |
| 696 |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 2,599–3,717 mg per serving · Price: none matched · % DV: 100% vs 100%
Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.
Compound: The whole salt, such as magnesium glycinate, that must physically fit in the capsule.
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; size 00 holds about 730 mg and size 0 about 545 mg.
Recompute with your price
Enter the price you paid; the declared amount and servings of this label are prefilled, so the result is the cost per 100 mg of elemental magnesium for your bottle.
Same-salt comparison appears here.
How much citrate compound is in one serving?
Bluebonnet Liquid Magnesium Citrate Mixed Berry Flavor carries 2,599–3,717 mg of magnesium citrate per serving for 420 mg of elemental magnesium, against 1,100 mg in the largest standard capsule; capsule capacities do not apply to this liquid.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 420 mg |
| Units per serving | Not a discrete unit as of 2026-11-02 |
| Magnesium citrate per serving | 2,599–3,717 mg |
| Magnesium citrate per serving | Not computable as of 2026-11-02 |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Capsule sizes do not apply |
The filed salt can have more than one hydration state (trimagnesium dicitrate 16.2%; dibasic and hydrated forms as low as 11.3%), so the compound mass is a range.
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Bluebonnet Liquid Magnesium Citrate Mixed Berry Flavor files 1 magnesium line in NIH DSLD 314814; the selected primary line declares 420 mg of elemental magnesium per serving, against 0 other rows excluded from the primary amount. A salt named under another nutrient does not turn that nutrient's quantity into elemental magnesium.
measured| Filed amount | Salt or note as filed | Role |
|---|---|---|
| 420 mg | Salt not named in this row; magnesium citrate is taken from the label text | Primary serving |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's citrate claim hold up, or could the magnesium come from another source?
The label names one magnesium form, citrate, resolved from the full NIH DSLD record text; capsule capacities do not apply to this form, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium citrate | 11.3–16.2% | full NIH DSLD record text |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
No US retail price is matched to this label as of 2026-11-02; 17 of 135 citrate labels have one, against a median of $0.1159 per 100 mg among 12 ranked citrate offers.
computed
Chart data
| Displayed chart text |
|---|
| n=12 |
| P25 $0.0843 |
| P75 $0.1469 |
| median $0.1159 |
| Rank | Label | Per 100 mg | Observed |
|---|---|---|---|
| 1 | Best Naturals Magnesium Citrate 200 mg | $0.0344 | 2026-11-02 |
| 2 | Solgar Magnesium Citrate | $0.0607 | 2026-11-02 |
| 3 | LES Labs Magnesium Citrate | $0.0777 | 2026-11-02 |
| 4 | Bluebonnet Magnesium Citrate | $0.0865 | 2026-11-02 |
| 5 | Solaray Magnesium Citrate 400 mg | $0.0868 | 2026-11-02 |
| Median | 12 ranked citrate offers | $0.1159 | 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
How many days will this bottle last at the label's own serving, and what does a day cost?
At the label's own serving, Bluebonnet Liquid Magnesium Citrate Mixed Berry Flavor lasts 32 days: 32 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 16 Fluid Ounce(s); 473 mL |
| Serving size as filed | 15 mL (1 Tablespoon) |
| Servings per container | 32 |
| Servings per day in the directions | 1 |
| Days per bottle | 32 days |
| $ per 30 days at one label serving a day | No ranked price as of 2026-11-02 |
| $ per 30 days at 420 mg Daily Value | No ranked price as of 2026-11-02 |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "100% Daily Value" mean here, and does it recompute?
The label declares 100% Daily Value; 420 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 100%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 100% | 420 mg | 100% |
Source · NIH DSLD 314814; 21 CFR 101.9 · label 2024-08-22 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain these other ingredients, what shell is it, and who is it filed for?
Bluebonnet Liquid Magnesium Citrate Mixed Berry Flavor files 8 other ingredients, and no magnesium stearate, against 43 of 135 citrate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Water, Purified |
| 2 | Fructose |
| 3 | Citric Acid |
| 4 | Natural Mixed Berry Flavor |
| 5 | Xanthan Gum |
| 6 | Potassium Sorbate |
| 7 | Carrageenan |
| 8 | Stevia Leaf Extract |
7 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| Target group | Vegan |
| Target group | Vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Kosher |
| Target group | No Allergies |
| Target group | Gluten Free |
| Target group | Dairy Free |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about citrate, and about side effects?
10 studies in the PubMed-checked registry measured outcomes involving citrate; 1 mention gastrointestinal or adverse outcomes. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2025 | Comparing the Bioavailability of Two Seawater-Derived Magnesium Preparations. | 40955524 |
| 2024 | Comparative Clinical Study on Magnesium Absorption and Side Effects After Oral Intake of Microencapsulated Magnesium (MAGSHAPE™ Microcapsules) Versus Other Magnesium Sources. | 39770988 |
| 2022 | Effects of short-term magnesium supplementation on ionized, total magnesium and other relevant electrolytes levels. | 35041150 |
Source · PubMed-checked study registry · registry checked 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Has this brand had FDA recalls or adverse event reports?
Bluebonnet has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Bluebonnet has FDA CAERS adverse event reports on record at brand level, as do 143 of 273 brands in this registry; 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 recall record as of 2026-10-19 |
Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method
Is this the same formula as another brand's, and how do their prices differ?
No other brand files the same formulation (ingredients, shell, units and rounded amount) as of 2026-11-02.
computed| Label | Brand | Price per 100 mg |
|---|---|---|
| No cross-brand match as of 2026-11-02 |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
No other label files the same resolved salt within ±10% of this label's dose per unit as of 2026-11-02.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| No neighbour as of 2026-11-02 |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Where does this record come from, what is missing, and how do I cite or correct it?
Every value on this page traces to NIH DSLD 314814 (label 2024-08-22, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 1 gap remain: No US retail price matched as of 2026-11-02 (barcode 7 43715 00703 1). The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 314814 |
| Scanned label (PDF) | Label 314814 scan |
| Label date | 2024-08-22 |
| Date entered into DSLD | 2024-08-22 |
| Barcode (UPC) as filed | 7 43715 00703 1 |
| Label version · Package size difference, same product | NIH DSLD 280168 |
| Label version · Image difference, same product | NIH DSLD 268286 |
| Label version · Image difference, same product | NIH DSLD 279687 |
28 additional rows
| Field | As filed |
|---|---|
| Manufactured for | Bluebonnet Nutrition Corporation, Sugar Land, Texas, USA |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Suggested/Recommended/Usage/Directions | Shake well |
| Formula re: Contains | Bluebonnet's Liquid Magnesium Citrate is formulated with a special, water-soluble form of magnesium chelated to citrate in a delicious mixed berry flavor. Magnesium is required in over 300 biochemical reactions in the body but is primarily known to calm the mind and body, reduce stress, induce restful sleep, increase bone density, as well as support immune and heart health. |
| Formulation re: Does NOT Contain | Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat, soybeans and sesame. Also free of gluten, barley, rice and sodium. |
| Formulation re: Other | Minerals are shown in their elemental value. |
| Formula re: Kosher | KOF-K Certification #K-0003138 |
| Formulation re: Other | Made in USA from domestic and imported ingredients. |
| Precautions re: Children | Warning: For adults only. Keep out of reach of children. |
| Precautions re: All Other | May cause drowsiness. Do not operate a vehicle or heavy machinery following consumption. Do not use in conjunction with alcoholic beverages. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Consult a healthcare practitioner if pregnant/nursing, or if you have a medical condition, particular kidney problems or an obstructed bowel, or currently on medications like sleep aids or laxatives. |
| FDA Disclaimer Statement | These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. |
| General Statements: All Other Content | BPA free Recycle bottle |
| Formulation re: Other | For heart, muscle-nerve & bone support |
| Seals/Symbols | Made with Non GMO Ingredients |
| Formulation re: Does NOT Contain | Made with Non GMO Ingredients |
| Seals/Symbols | K Parve (Kosher) |
| Formula re: Kosher | K Parve (Kosher) |
| Seals/Symbols | Vegan |
| Formulation re: Vegetarian/Vegan | Vegan |
| Formulation re: Does NOT Contain | Milk free Gluten free Soy free |
| Suggested/Recommended/Usage/Directions | Directions: As a dietary supplement, take one tablespoon (15 mL) daily or as directed by a healthcare practitioner. Shake well before serving. |
| Storage | Store tightly closed and refrigerate after opening. |
| FDA Statement of Identity | Dietary Supplement |
| Physical state | Liquid |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 314814 · label 2024-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
6 brand pages linked below contain magnesium labels from the NIH DSLD registry snapshot dated 2026-08-10.