LookCloser.aipublic supplement evidence
Exact product checked · GTIN 733739015228NOW Foods · observed 2026-07-23
The useful read · NOW Foods

NOW Foods Supplements, Zinc (Zinc Gluconate) 50 mg

FDA recall appears in this brand's history

Rebuilt from public sources on July 23, 2026 · evidence availability is not a safety or effectiveness verdict.

250tablets
Needs explanation

FDA recall appears in this brand's history

An exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.

Public context

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.

03

Any trouble on the record?

Needs explanationFDA public records

FDA recall appears in this brand's history

Brand-level context only, not a finding about this product. Now Foods recalled a different or not-exactly-bound product on 2025-05-08: “regular yeast was inadvertently packaged as nutritional yeast” (status: Terminated). The recalled product was: “NOW Nutritional Yeast Powder, Nt…

Why it mattersAn exact-product recall is a direct signal. A different product from the same firm is company context, not a strike against this item.

Open the source-linked finding
05

Will 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 finding
What remains open 2
  • Panel amounts still need a clearer source image.
  • 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.

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Open the full evidence trailSources, edge cases, and every unresolved check

Confirmed evidence

What checked out00

These checks found support in the public record. They confirm specific facts, not the product as a whole.

Nothing could be independently confirmed from the available record.

Documented concerns

What needs caution00

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 missing07

We looked for these signals but could not settle them from public sources. A gap is not a strike.

Panel amounts are awaiting a clearer image read

The current image extraction retained 1 ingredient name(s) but no usable amounts. This is a LookCloser processing gap, not evidence that the brand withheld the numbers; dose arithmetic is withheld until the panel is re-read.

No data

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.

No data

FDA recall appears in this brand's history

Brand-level context only, not a finding about this product. Now Foods recalled a different or not-exactly-bound product on 2025-05-08: “regular yeast was inadvertently packaged as nutritional yeast” (status: Terminated). The recalled product was: “NOW Nutritional Yeast Powder, Nt. Wt. 10oz. UPC 7 33739 02460 2” — not necessarily the product on this page. Verify at FDA’s recall database.

No data

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.

No data

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.

No data

180-day review-count history is on file

Exact-listing history records written-review counts from 87 on 2026-02-01 to 106 on 2026-07-21 (net +19). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.

No data

Barcode record is too sparse to confirm identity

Open Food Facts resolves 733739015228 to "Zinc 50 Mg" (NOW), but that record lacks enough exact brand/product detail to confirm or contradict this listing.

No data

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

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 733739015228.

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.