Label arithmetic · NIH DSLD 259735
Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor: 1 mg of magnesium per gummy, 1 gummy a day
1 mg of magnesium per gummy, 1 a day. No US price matched (Nov 2). Inside: salt weight, %DV check.
Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor declares 1 mg of elemental magnesium per serving as citrate, which means 6–9 mg of magnesium citrate compound in one 1 gummy(ies), compared with 1,100 mg in the largest standard capsule; capsule verdicts do not apply to this gummy or jelly. 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 259735, label dated 2022-02-23.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 17 |
| orotate |
| 14 |
| L-threonate |
| 12 |
| taurate |
| 11 |
| lactate |
| 8 |
| glycerophosphate |
| glycinate |
| 7 |
| malate |
| 6 |
| aspartate |
| citrate |
| sulfate |
| 5 |
| chloride |
| 4 |
| carbonate |
| 3 |
| hydroxide |
| 2 |
| oxide |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 6–9 mg per serving · Price: none matched · % DV: 1% vs 0%
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?
Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor carries 6–9 mg of magnesium citrate per serving for 1 mg of elemental magnesium, against 1,100 mg in the largest standard capsule; capsule capacities do not apply to this gummy or jelly.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 1 mg |
| Units per serving | 1 |
| Magnesium citrate per serving | 6–9 mg |
| Magnesium citrate per serving | 6–9 mg |
| 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 259735 · label 2022-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor files 1 magnesium line in NIH DSLD 259735; the selected primary line declares 1 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 |
|---|---|---|
| 1 mg | citrate · Magnesium (Form: as Magnesium Citrate) | Primary serving |
Source · NIH DSLD 259735 · label 2022-02-23; 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 filed magnesium line; 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% | filed magnesium line |
Source · NIH DSLD 259735 · label 2022-02-23; 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, Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor lasts 60 days: 60 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 60 Gummy(ies) |
| Serving size as filed | 1 Gummy(ies) |
| Servings per container | 60 |
| Servings per day in the directions | 1 |
| Days per bottle | 60 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 259735 · label 2022-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "1% Daily Value" mean here, and does it recompute?
The label declares 1% Daily Value; 1 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 0%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 1% | 420 mg | 0% |
Source · NIH DSLD 259735; 21 CFR 101.9 · label 2022-02-23 · 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?
Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor files 9 other ingredients, and no magnesium stearate, against 43 of 135 citrate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Cane Sugar |
| 2 | Tapioca Syrup |
| 3 | Water |
| 4 | Citrus Pectin |
| 5 | Citric Acid |
| 6 | Adipic Acid |
| 7 | Sodium Citrate |
| 8 | Natural Flavors |
5 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| 9 | Black Carrot extract |
| Target group | Vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Women (not pregnant or lactating) |
| Target group | Gluten Free |
Source · NIH DSLD 259735 · label 2022-02-23; 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?
Sleep Soundly has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Sleep Soundly has no FDA CAERS adverse event report on record at brand level as of 2026-10-19 (143 of 273 brands in this registry have at least one CAERS report).
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 259735 · label 2022-02-23; 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 259735 · label 2022-02-23; 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 259735 (label 2022-02-23, 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 0 35046 11620 0). The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 259735 |
| Scanned label (PDF) | Label 259735 scan |
| Label date | 2022-02-23 |
| Date entered into DSLD | 2022-02-23 |
| Barcode (UPC) as filed | 0 35046 11620 0 |
| Label version · Image difference, same product | NIH DSLD 231810 |
| Distributed by | Windmill Health Products, West Caldwell, NJ |
| Claim category as filed | Nutrient |
18 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Suggested/Recommended/Usage/Directions | Directions: Take 1 gummy at bedtime or as directed by a healthcare professional. |
| Precautions re: Children | Keep out of reach of children. |
| Storage | Protect from heat, light and moisture. Store in a cool, dry place. |
| Precautions re: All Other | Do not use if seal is broken. |
| Precautions re: All Other | Warning: For adult use only at bedtime. |
| Precautions re: Pregnant or Nursing or Prescription Medications | This product is not to be taken by pregnant or lactating women. If you are taking medication or have a medical condition, consult a physician before using this product. |
| Precautions re: All Other | Do not use in conjunction with alcoholic beverages, when driving a vehicle, or while operating machinery. |
| 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. |
| Formula re: Contains | Melatonin 5 mg per gummy Pectin based |
| Formulation re: Does NOT Contain | Gluten free - Gelatin free |
| Formulation re: Vegetarian/Vegan | Suitable for vegetarians |
| FDA Statement of Identity | Dietary Supplement |
| Formulation re: Other | Made in the U.S.A. from globally sourced ingredients. |
| General Statements: All Other Content | Please Recycle |
| Physical state | Gummy or Jelly |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 259735 · label 2022-02-23; 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.