Listing claim matches the Supplement Facts panel
What is advertised is what the label declares. This checks internal consistency; it is not an independent test of the contents.
Exact product checked · GTIN 810139573005Nutricost · observed 2026-07-23
The useful read · Nutricost
Nutricost Zinc Picolinate 50mg
Listing claim matches the Supplement Facts panel
Rebuilt from public sources on July 23, 2026 · evidence availability is not a safety or effectiveness verdict.
240capsules
240servings per container
The barcode identity checks out · 810139573005.
The outside identifier points to this product, so the other checks are less likely to be about a look-alike.
Research links are available for zinc.
Use the linked research to check whether the ingredient and outcome you care about are actually connected. Ingredient evidence does not verify this product.
Shopper scorecard
The useful findings, in decision order.
Only product facts and comparisons earn a card. Pipeline gaps stay collapsed.
Is the label honest?
Checks outLabel and serving arithmetic
Listing claim matches the Supplement Facts panel
The listing claims 50 mg; the photo-read Supplement Facts panel shows Zinc (as zinc picolinate) at 50 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
Why it mattersWhat is advertised is what the label declares. This checks internal consistency; it is not an independent test of the contents.
Open the source-linked findingWho is behind it?
Checks outBarcode / GTIN record
The barcode identity checks out · 810139573005.
Open Food Facts resolves 810139573005 to "Zinc Picolinate" (Nutricost) — consistent with this listing.
Why it mattersThe outside identifier points to this product, so the other checks are less likely to be about a look-alike.
Open the source-linked findingWill it do what you want?
Public contextNIH / published research
Research links are available for zinc.
Published sources describe how 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 — Zinc fact sheet, PubMed search: zinc supplementation trial.
Why it mattersUse the linked research to check whether the ingredient and outcome you care about are actually connected. Ingredient evidence does not verify this product.
Open the source-linked findingWhat remains open 1
- Not yet in NIH's public label registry.
These are evidence gaps, not strikes against the product.
Relevant research · quick links
Read the ingredient evidence directly
These links provide the public research context used alongside the captured panel. They do not establish safety, effectiveness, or product quality.
Want the complete evidence trail?
The summary stops at product-specific facts. The full report preserves every source, calculation, limitation, and unresolved check for review or sharing.
Open the full evidence trailSources, edge cases, and every unresolved check
Confirmed evidence
What checked out02
These checks found support in the public record. They confirm specific facts, not the product as a whole.
Testing claim names a recognized certifier
A named certifier/laboratory appears in the listing (registry cross-check pending).
Barcode confirmed in an outside database
Open Food Facts resolves 810139573005 to "Zinc Picolinate" (Nutricost) — consistent with this listing.
Documented concerns
What needs caution01
These are documented contradictions or claims that need more evidence. They are separate from missing data.
Dose claim implausibly high for a capsule
Claimed zinc 50.0 mg is 100% of the ≈50 mg serving (serving size on the label, keyed to UPC 810139573005) — above what gummy matrices realistically carry.
Unresolved public record
What is still missing06
We looked for these signals but could not settle them from public sources. A gap is not a strike.
Listing claim matches the label panel
The listing claims 50 mg; the photo-read Supplement Facts panel shows Zinc (as zinc picolinate) at 50 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
Research context is available for the listed ingredients
Published sources describe how 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 — Zinc fact sheet, PubMed search: zinc supplementation trial.
Zinc amount, in daily-intake context
label states 50 mg/serving — about 125% of the adult daily reference (adult RDA 8–11 mg; NIH sets 40 mg/day as the tolerable upper limit for adults). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate and gluconate labels may state compound mass rather than elemental zinc. Sources: NIH ODS — Zinc fact sheet, PubMed search: zinc supplementation trial.
No label filed with NIH's public catalog
The NIH Dietary Supplement Label Database has no matching label yet. Ingestion lags the market — recorded as a gap, not a strike.
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 459 on 2026-02-02 to 486 on 2026-07-20 (net +27). 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
Can you send the certificate of analysis (COA) for the lot number on my bottle?
A real COA names the testing laboratory, the test date, the lot it covers, and what was measured. “Third-party tested” with no document behind it is a marketing sentence.
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 810139573005.
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.
Record built July 23, 2026. Sources: source listing observed at check time · USPTO Trademark Search · Keepa exact-listing history · NIH / published research · certification and regulator records where available. LookCloser publishes evidence and gaps; it does not advise for or against any supplement. Evidence-based corrections welcome.