full reportFull record · 031604002596 · back to the summary
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What this is. We compare what a listing claims against what public records show — label arithmetic, barcode registries, NIH’s label catalog, FDA enforcement data, certification registries, and published research. Every statement below traces to one of those.
What the states mean. Confirmed = an outside source agrees. Contradicted = an outside source disagrees. Caution = something needs explaining. No data = we looked and found nothing — a gap, not a strike.
What it is not. A clean record is not an endorsement and never proof a product works. A thin record is not an accusation. We publish evidence and gaps; the conclusion is yours. Nothing here is medical advice.
Something wrong? Every figure is meant to be checkable — sources are named and linked. Send a correction and we’ll fix the record.
The listing-image panel publishes an amount for each of its 4 listed rows. That supports ingredient-by-ingredient review; it does not verify the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Total Carbohydrate | less than 1 g | — | |
| Vitamin D3 (as Cholecalciferol) | 30 mcg (1200 IU) | — | |
| Magnesium (as Magnesium Oxide, Magnesium Citrate, Magnesium Glycinate & Magnesium Malate) | 230 mg | — | |
| Zinc (as Zinc Citrate & Zinc Ascorbate) | 10.5 mg | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a listed “proprietary blend” (legal, but a transparency yellow flag). A label stating no amount at all is non-compliant — a checkable red flag. This panel states amounts; the open question is whether those listed amounts are independently verified and how they compare with relevant research.
vision:claude-cli:subscription Amounts are shown as listed panel data, not independently lab-tested contents.
Every check we ran
Confirmed evidence
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Label #8901 “B-Complex Supplement With Vitamin C” (Nature Made), entered 2012-06-01, with the full Supplement Facts on file. NIH marks this label as off-market (superseded or discontinued version). Company on file: Distributor — Nature Made Nutritional Products, Mission Hills, CA, U.S.A..
Open Food Facts resolves 031604002596 to "Magnesium Complex" (Nature Made) — consistent with this listing.
Documented concerns
These are documented contradictions or claims that need more evidence. They are separate from missing data.
The panel lists 50 mg niacin. NIH gives 35 mg as the adult Tolerable Upper Intake Level for supplemental/added niacin, adults. That is about 1.4 times the limit.
Unresolved public record
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Marketplace rating not shown★ — rating count unavailable. No exact-listing count history was available, so no review-pattern claim is made.
USPTO returned multiple live supplement-class records for the exact brand wordmark: PHARMAVITE LLC, PHARMAVITE CORPORATION. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link remains open.
We read the full Supplement Facts panel from the listing-image panel (below), but the label doesn’t state a serving weight, so the arithmetic can’t run. A gap in the label’s information, not evidence of a problem.
Published sources describe how magnesium, zinc have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.
This recall is not about the product on this page. Pharmavite recalled a different product on June 6, 2016. FDA has since closed that case. The recalled item was “Nature Made(R) D3 1000IU, 125 count, UPC 0-31604-02793-3”. FDA recorded the reason as “Specific lots of Nature Made(R) Vitamin D tablets may exceed specifications for yeast/mold”. Verify at FDA’s recall database.
What to ask and check
Ask the brand or seller
Where are the ingredients sourced, and where is the product manufactured?
“Made in USA” can describe only the final bottling step. Ask which country the actives came from and whether the facility is audited.
Most brands and sellers publish a contact route. A clear answer adds evidence to the record; no answer leaves the question open.
Check for yourself — no one’s permission needed
Compare the panel on the bottle in your hand to the one shown in this record.
Ours was read from listing photos and can contain reading errors. The physical label is the source of truth — if they disagree, tell us and we’ll correct the record.
Scan the barcode on the package and confirm it reads 031604002596.
A mismatch between the barcode on the box and the one on the listing is worth pausing over — it can indicate a different variant, a repack, or a counterfeit.
Check the lot number and expiry on the bottle against any COA you’re given.
A certificate that doesn’t name your lot doesn’t describe what you’re holding.
These are the open questions on this specific record — not a warning about the product, and not a suggestion to buy or avoid it. Getting them answered is how you decide for yourself.
What the listing promises — claim by claim
| Claim | Status | What we found |
|---|---|---|
| Origin claim “…Number 1 Pharmacist Recommended Vitamin & Supplement Brand*; made in the USA with quality global ingredients…” | Claimed, not verifiable We looked for: customs records or label filings showing where ingredients were sourced and where it was made | “Made in USA” can describe only final bottling. Ingredient-sourcing records were not located for this product. |
| Benefit claim “…Muscle and immune health support supplement: contains one 60 count bottle of Nature Made Magnesium Complex with D3 and Zinc Capsules for a 30-day supply…” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed. |
“No evidence located” does not mean a claim is false — it means the seller has not put evidence proportionate to the claim on the public record, and we could not find any. Absence of proof is not proof of absence.
This label vs. the doses studied
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Magnesium (as Magnesium Oxide, Magnesium Cit | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 230 mg — within the studied range |
| Zinc (as Zinc Citrate & Zinc Ascorbate) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 10.5 mg — within the studied range |
Matching a studied dose does not mean the product works, and missing it does not mean it fails — it shows whether the label and the research are talking about the same amounts. Not a recommendation to take any amount.
Documented cautions
Statements from published sources about these ingredients — not advice about this product, and not a complete safety review. Anyone taking medication should talk to a pharmacist or clinician.
Verifiability profile — 4 of 6 public signals
What this listing gives the public to check. Publishing these signals doesn't prove quality — but withholding them means claims can only be taken on faith.
Identity
| UPC (barcode) — also our record ID | 031604002596 — via source listing UPC |
| Brand | Nature Made |
| Source listing identifier | B0BX7HSL2S |
| Retailer listing title | Nature Made Magnesium Complex Supplement with Vitamin D & Zinc, 60 Cap… show full titleNature Made Magnesium Complex Supplement with Vitamin D & Zinc, 60 Capsules |
| USPTO brand-owner record | PHARMAVITE LLC · CALIFORNIA, USA · registration 3520080 · 8531 Fallbrook Avenue, West Hills, CALIFORNIA 91304, UNITED STATES |
| USPTO brand-owner record | PHARMAVITE CORPORATION · CALIFORNIA, USA · registration 1963505 · 8510 BALBOA BLVD., NORTHRIDGE, CALIFORNIA 91325, UNITED STATES |
From the label (photo-read)
| Serving size | Serving Size 2 Capsules |
| Servings per container | 30 |
| Pack statement | 60 CAPSULES |
| Badges printed on pack | Made in the USA with Global Ingredients, Gluten free, Gluten Free, Non-GMO |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Total Carbohydrate | less than 1 g | High clearly legible in the photo |
| Vitamin D3 (as Cholecalciferol) | 30 mcg (1200 IU) | High clearly legible in the photo |
| Magnesium (as Magnesium Oxide, Magnesium Citrate, Magnesium | 230 mg | High clearly legible in the photo |
| Zinc (as Zinc Citrate & Zinc Ascorbate) | 10.5 mg | High clearly legible in the photo |
Claims printed on the packaging:
“#1 PHARMACIST RECOMMENDED VITAMIN & SUPPLEMENT BRAND” · “Vitamin D3 & Zinc support a healthy immune system†” · “4-in-1 Magnesium blend supports muscle relaxation, heart, nerve & bone health†” · “Dietary Supplement” · “Magnesium supports:” · “Muscle Relaxation†” · “Nerve Health†” · “Heart Health†”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Supplement Facts — NIH DSLD registry
serving: 1 Caplet(s) · contents: 100 Premium Caplet(s) · label #8901 at dsld.od.nih.gov
| Ingredient | Amount per serving |
|---|---|
| Vitamin C | 300 mg |
| Thiamine | 15 mg |
| Riboflavin | 10.2 mg |
| Niacin | 50 mg |
| Vitamin B6 | 5 mg |
| Pantothenic Acid | 10 mg |
mcg = 1/1,000 of a mg. As filed in the NIH Dietary Supplement Label Database — the authoritative digitization of the printed label. Label versions can lag reformulations.
Where it sells
| Seller | Price |
|---|---|
| Retailer listing ↗ | $14.98 checked Aug 05, 2026 — varies by variant/session; price history pending |
Brand store naturemade.com: 172 supplement products (+23 merch items) — for comparison, single-focus brands typically carry 5–30 products; very broad catalogs are common among companies that rebrand ready-made formulas — a pattern note, not a verdict.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
Vitamin C — NIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)
Thiamin — NIH ODS · MedlinePlus · PubMed (1,262) · no UL established
Riboflavin — NIH ODS · MedlinePlus · PubMed (3,172) · no UL established
Niacin — NIH ODS · MedlinePlus · PubMed (2,689) · UL 35 mg (supplemental/added niacin, adults)
Vitamin B6 — NIH ODS · MedlinePlus · PubMed (2,372) · UL 100 mg (adults; chronic high intake linked to neuropathy)
Pantothenic Acid — NIH ODS · MedlinePlus · PubMed (601) · no UL established
Reference data from the NIH Office of Dietary Supplements, IOM Dietary Reference Intakes, and PubMed. A Tolerable Upper Intake Level is a documented reference figure, not a safety verdict — both the listed amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Related research & consistency
magnesium — NIH ODS — Magnesium fact sheet · PubMed search: magnesium glycinate supplementation · WebMD: magnesium · ClinicalTrials.gov — 3,206 registered studies
ℹ Use pattern in research: daily oral use; chelated forms (glycinate) are studied for absorption — note labels may state compound mass rather than elemental magnesium, which differs ~7-fold.
zinc — NIH ODS — Zinc fact sheet · PubMed search: zinc supplementation trial · ClinicalTrials.gov — 1,598 registered studies
ℹ Use pattern in research: daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record 031604002596 · built August 05, 2026 · lookcloser.ai · corrections@lookcloser.ai