Every ingredient amount is disclosed
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Full record · 048107248918 · back to the summary
GNC Mega Men 50 Plus Multivitamin for Men, Heart & Prostate
Exact product checkedGTIN 00048107248918 · checked 2026-08-14
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How to read this report
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.
Panel, decoded
What the label discloses
25listed rows
25separately quantified
0combined blend totals
The listing-image panel publishes an amount for each of its 25 listed rows. That supports ingredient-by-ingredient review; it does not verify the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Vitamin A (50% as beta-Carotene & 50% as Retinyl Acetate) | 1500 mcg RAE | — | |
| Vitamin C (as Ascorbic Acid & Calcium Ascorbate) | 300 mg | — | |
| Vitamin D (as Cholecalciferol) | 50 mcg | — | |
| Vitamin E (as d-alpha Tocopheryl Acetate) | 20.1 mg | — | |
| Vitamin K (as Phytonadione) | 80 mcg | — | |
| Thiamin (Vitamin B-1) (as Thiamin Mononitrate) | 50 mg | — | |
| Riboflavin (Vitamin B-2) | 50 mg | — | |
| Niacin (as Niacinamide & Niacin) | 50 mg | — | |
| Vitamin B-6 (as Pyridoxine Hydrochloride) | 50 mg | — | |
| Folate (400 mcg Folic Acid) | 680 mcg DFE | — | |
| Vitamin B-12 (as Cyanocobalamin) | 50 mcg | — | |
| Biotin | 300 mcg | — | |
| Pantothenic Acid (as Calcium d-Pantothenate) | 50 mg | — | |
| Choline (as Choline Bitartrate) | 10 mg | — | |
| Calcium (as Calcium Carbonate, Calcium d-Pantothenate, Dicalcium Phosphate, Calcium Ascorbate) | 210 mg | — | |
| Iodine (as Potassium Iodide) | 150 mcg | — | |
| Magnesium (as Magnesium Oxide) | 120 mg | — | |
| Zinc (as Zinc Oxide) | 25 mg | — | |
| Selenium (as L-Selenomethionine) | 200 mcg | — | |
| Copper (as Cupric Sulfate) | 2 mg | — | |
| Manganese (as Manganese Sulfate) | 2 mg | — | |
| Chromium (as Chromium Chloride) | 120 mcg | — | |
| Molybdenum (as Sodium Molybdate) | 75 mcg | — | |
| Saw Palmetto (Serenoa repens) Berry Extract | 100 mg | — | |
| Arginine (as L-Arginine Monohydrochloride) | 100 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
What checked out3
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Confirmed
Barcode confirmed in an outside database
Open Food Facts resolves 048107248918 to "Mega Men 50 Plus Multivitamin" (GNC) — consistent with this listing.
The review count moved gradually, not in one burst
Written reviews rose from 203 to 245 between May 21 and August 13, 2026. The largest rise inside any single 30-day window was about 18, so the count moved in steps rather than in one burst.
Documented concerns
What needs caution0
These are documented contradictions or claims that need more evidence. They are separate from missing data.
No contradictions or product-specific cautions were found at this check depth.
Unresolved public record
What is still missing8
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Multiple USPTO brand-owner records are shown
USPTO returned multiple live supplement-class records for the exact brand wordmark: General Nutrition Investment Company, GNC Holdings, LLC. These records answer who owns registrations for the brand; the separate product-to-owner or manufacturer link remains open.
Multi-ingredient formula — panel read, serving weight unknown
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.
Research context is available for the listed ingredients
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 category has documented FDA fraud risk
FDA's health-fraud program documents sexual-enhancement products as the most common supplement category found to contain undeclared prescription-drug ingredients. This is a category-level documented fact from FDA's public database — not a test result for this specific product. Source: fda.gov (linked in Related research).
FDA recall appears in this brand's history
This recall is not about the product on this page. GNC Holdings LLC recalled a different product on April 25, 2025. FDA has since closed that case. The recalled item was “GNC Women's 30+ Vitapak, Carton of 30 Sachets. Each sachet contains four tablets and a capsule. Paper-board carton that measures 10.25 width x 3.56 height x 3.15 depth containi”. FDA recorded the reason as “Undeclared Fish allergen (parvalbumin)”. Verify at FDA’s recall database.
Public label filing not saved
We have not found a public label filing for this exact product. That is a gap in our records, not evidence that no filing exists.
This item belongs to a catalog variation family
The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.
180-day review-count history is on file
Exact-listing history records written-review counts from 202 on 2026-05-04 to 245 on 2026-08-13 (net +43). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What to ask and check
What would settle the open questions
Why is this shown?
Everything we couldn’t verify is something a person can still ask about. Rather than leave gaps sitting as dead ends, we turn each one into a specific question — the exact document, citation, or number that would settle it — plus the things you can confirm yourself with the bottle in your hand.
Ask the brand or seller
1
Which specific study supports this claim — and was it run on this exact formula?
Ask for the citation, how many people took part, the dose used, and whether the study tested this product or just one ingredient in it. Ingredient research is not product evidence.
2
Is this label filed with NIH’s Dietary Supplement Label Database (DSLD)?
Filing is voluntary, so absence proves nothing — but a filed label puts the full ingredient table on public record where anyone can read it.
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
1
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.
2
Scan the barcode on the package and confirm it reads 048107248918.
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.
3
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
Why is this shown?
A listing’s promises are the reason people buy. Each one gets its own row: what was promised, what evidence would settle it, and what we could actually find. We never call a claim false — only whether proof proportionate to it exists on the public record.
| Claim | Status | What we found |
|---|---|---|
| Clinical-evidence claim “…More antioxidant power than ever and over 30 clinically studied ingredients in every formula - all in smaller, easier-to-swallow pills…” | No evidence located We looked for: a named, citable clinical study of this product or formula | We found no named, citable study of this product or formula. The claim may rest on ingredient research rather than a trial of this product. |
| Benefit claim “…Men's Health - Contains a clinically studied men's multivitamin shown to work better than a basic multivitamin Helps support colon health…” | 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
Why is this shown?
An ingredient can be well-studied at one amount and barely studied at the amount in your bottle. This lines the label up against the doses researchers actually used. It answers ‘are these the same numbers?’ — never ‘should you take this?’
| Ingredient | Where this label sits | Reading |
|---|---|---|
| Magnesium (as Magnesium Oxide) | shaded = doses used in studies (200 mg–420 mg) · bar = this label | 120 mg — below the studied range |
| Zinc (as Zinc Oxide) | shaded = doses used in studies (8 mg–40 mg) · bar = this label | 25 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
- magnesium — 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 — daily oral use; sustained high intakes can interfere with copper absorption — a documented interaction, not advice
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 — 3 of 6 public signals
✓ UPC / GTIN published✓ Supplement Facts visible in photos✓ Brand's own store found· Per-serving dose established — not published· Found in NIH's label catalog (DSLD) — not published· Third-party lab named or registry-certified — not published
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 | 048107248918 — via source listing UPC |
| Brand | GNC |
| Source listing identifier | B0D3WSNL4B |
| Retailer listing title | GNC Mega Men 50 Plus Multivitamin for Men, Heart & Prostate, 120 Count… show full titleGNC Mega Men 50 Plus Multivitamin for Men, Heart & Prostate, 120 Count |
| USPTO brand-owner record | General Nutrition Investment Company · ARIZONA, USA · registration 3429065 · 1011 Centre Road - Suite 322, Wilmington, DELAWARE 19805, UNITED STATES |
| USPTO brand-owner record | General Nutrition Investment Company · DELAWARE, USA; ARIZONA, USA · registration 2180647 · 103 Springer Building, 3411 Silverside Road, Wilmington, DELAWARE 19810, UNITED STATES |
| USPTO brand-owner record | GNC Holdings, LLC · Delaware, USA · registration 7612523 · 75 Hopper Place - Suite 501, Pittsburgh, Pennsylvania 15222, UNITED STATES |
From the label (photo-read)
| Serving size | Serving Size Two Caplets |
| Servings per container | 30 |
| Pack statement | 120 CAPLETS • 60-DAY SUPPLY |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Vitamin A (50% as beta-Carotene & 50% as Retinyl Acetate | 1500 mcg RAE | High clearly legible in the photo |
| Vitamin C (as Ascorbic Acid & Calcium Ascorbate) | 300 mg | High clearly legible in the photo |
| Vitamin D (as Cholecalciferol) | 50 mcg | High clearly legible in the photo |
| Vitamin E (as d-alpha Tocopheryl Acetate) | 20.1 mg | High clearly legible in the photo |
| Vitamin K (as Phytonadione) | 80 mcg | High clearly legible in the photo |
| Thiamin (Vitamin B-1) (as Thiamin Mononitrate) | 50 mg | High clearly legible in the photo |
| Riboflavin (Vitamin B-2) | 50 mg | High clearly legible in the photo |
| Niacin (as Niacinamide & Niacin) | 50 mg | High clearly legible in the photo |
| Vitamin B-6 (as Pyridoxine Hydrochloride) | 50 mg | High clearly legible in the photo |
| Folate (400 mcg Folic Acid) | 680 mcg DFE | High clearly legible in the photo |
| Vitamin B-12 (as Cyanocobalamin) | 50 mcg | High clearly legible in the photo |
| Biotin | 300 mcg | High clearly legible in the photo |
| Pantothenic Acid (as Calcium d-Pantothenate) | 50 mg | High clearly legible in the photo |
| Choline (as Choline Bitartrate) | 10 mg | High clearly legible in the photo |
| Calcium (as Calcium Carbonate, Calcium d-Pantothenate, Dical | 210 mg | High clearly legible in the photo |
| Iodine (as Potassium Iodide) | 150 mcg | High clearly legible in the photo |
| Magnesium (as Magnesium Oxide) | 120 mg | High clearly legible in the photo |
| Zinc (as Zinc Oxide) | 25 mg | High clearly legible in the photo |
| Selenium (as L-Selenomethionine) | 200 mcg | High clearly legible in the photo |
| Copper (as Cupric Sulfate) | 2 mg | High clearly legible in the photo |
| Manganese (as Manganese Sulfate) | 2 mg | High clearly legible in the photo |
| Chromium (as Chromium Chloride) | 120 mcg | High clearly legible in the photo |
| Molybdenum (as Sodium Molybdate) | 75 mcg | High clearly legible in the photo |
| Saw Palmetto (Serenoa repens) Berry Extract | 100 mg | High clearly legible in the photo |
| Arginine (as L-Arginine Monohydrochloride) | 100 mg | High clearly legible in the photo |
Claims printed on the packaging:
“WITH CLINICALLY PROVEN BLEND*” · “Antioxidants*” · “Heart Health*” · “Prostate Support*” · “TIMED RELEASE” · “DIETARY SUPPLEMENT” · “COMPLETE DAILY SUPPORT FOR MEN 50+” · “Targeted nutrition to help support heart, brain, and overall wellness as you age.”
Read by a vision model from 8 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
| Seller | Price |
|---|---|
| Retailer listing ↗ | $47.99 checked Aug 14, 2026 — varies by variant/session; price history pending |
Official brand domain: www.gnc.com. This storefront does not expose a complete public catalog count.
Reference links for identification only — LookCloser has no affiliate relationships and earns nothing from any link on this page.
Ingredient science — NIH references
Vitamin A — NIH ODS · MedlinePlus · PubMed (10,699) · UL 3000 mcg (preformed vitamin A (retinol); excludes beta-carotene)
Vitamin C — NIH ODS · MedlinePlus · PubMed (11,019) · UL 2000 mg (total intake, adults)
Vitamin D — NIH ODS · MedlinePlus · PubMed (26,500) · UL 100 mcg (adults; 100 mcg = 4,000 IU)
Vitamin E — NIH ODS · MedlinePlus · PubMed (12,326) · UL 1000 mg (supplemental alpha-tocopherol, adults)
Vitamin K — NIH ODS · MedlinePlus · PubMed (2,124) · no UL established; interacts with warfarin
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)
Folate — NIH ODS · MedlinePlus · PubMed (10,628) · UL 1000 mcg (synthetic folic acid from supplements/fortified food)
Biotin — NIH ODS · MedlinePlus · PubMed (1,606) · no UL; high doses interfere with lab tests
Pantothenic Acid — NIH ODS · MedlinePlus · PubMed (601) · no UL established
Choline — NIH ODS · MedlinePlus · PubMed (7,299) · UL 3500 mg (adults)
Calcium — NIH ODS · MedlinePlus · PubMed (48,938) · UL 2500 mg (adults 19-50 (2,000 mg for 51+))
Iodine — NIH ODS · MedlinePlus · PubMed (6,462) · UL 1100 mcg (adults)
Magnesium — NIH ODS · MedlinePlus · PubMed (11,814) · UL 350 mg (SUPPLEMENTAL magnesium only (not from food))
Zinc — NIH ODS · MedlinePlus · PubMed (19,708) · UL 40 mg (adults, from all sources)
Selenium — NIH ODS · MedlinePlus · PubMed (12,481) · UL 400 mcg (adults)
Copper — NIH ODS · MedlinePlus · PubMed (9,405) · UL 10 mg (adults)
Manganese — NIH ODS · MedlinePlus · PubMed (3,608) · UL 11 mg (adults)
Molybdenum — NIH ODS · MedlinePlus · PubMed (809) · UL 2000 mcg (adults)
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 · FDA — tainted sexual-enhancement products · 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 048107248918 · built August 14, 2026 · lookcloser.ai · corrections@lookcloser.ai