Full record · lc-4a550f0b · back to the summary
Nature Made Potassium Gluconate 550 mg, Dietary Supplement for Heart Health Support
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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.
What the label discloses
The listing-image panel publishes an amount for each of its 1 declared row. That supports ingredient-by-ingredient review; it does not verify the contents.
| Panel row | Amount | %DV | What to notice |
|---|---|---|---|
| Potassium (from 550 mg Potassium Gluconate) | 90 mg | — |
FDA rules (21 CFR 101.36) require the amount of each dietary ingredient per serving unless hidden in a declared “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 declared amounts are independently verified and how they compare with relevant research.
vision:google/gemini-flash-1.5 Amounts are shown as declared panel data, not independently lab-tested contents.
Every check we ran
Each ingredient’s 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.
No data yet: Label math could not be verified
The retained listing evidence does not establish net weight, per-serving dose, servings per container, so the dose claim cannot yet be checked against serving arithmetic. This is a neutral evidence gap, not a pass or strike.
No data yet: Multiple USPTO brand-owner records are shown
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.
FDA recall appears in this brand's history
Brand-level context only, not a finding about this product. Pharmavite recalled a different or not-exactly-bound product on 2016-06-06: “Specific lots of Nature Made(R) Vitamin D tablets may exceed specifications for yeast/mold.” (status: Terminated). The recalled product was: “Nature Made(R) D3 1000IU, 125 count, UPC 0-31604-02793-3” — not necessarily the product on this page. Verify at FDA’s recall database.
180-day review-count history is on file
Exact-listing history records written-review counts from 55 on 2026-03-20 to 60 on 2026-07-20 (net +5). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
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.
What the listing promises — claim by claim
Why is this shown?
| Claim | Status | What we found |
|---|---|---|
| Benefit claim “…550 mg, Dietary Supplement for Heart Health Support, 100 Tablets, 100 Day Supply Heart health su…” | Not assessed We looked for: whether the ingredient doses on the label match the doses used in published research | Ingredient-level evidence for this formula isn’t in our knowledge base yet. Recorded as not assessed — not as a negative. |
“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.
Verifiability profile — 3 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
| LookCloser record ID | lc-4a550f0b (internal — no barcode published, which limits cross-checking) |
| Brand | Nature Made |
| Source listing identifier | B00J2LB87W |
| Retailer listing title | Nature Made Potassium Gluconate 550 mg, Dietary Supplement for Heart H… show full titleNature Made Potassium Gluconate 550 mg, Dietary Supplement for Heart Health Support, 100 Tablets, 100 Day Supply |
| 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; CALIFORNIA, USA · registration 1963505 · 8510 BALBOA BLVD., NORTHRIDGE, CALIFORNIA 91325, UNITED STATES |
From the label (photo-read)
| Serving size | 1 tablet |
| Pack statement | 100 TABLETS |
| Badges printed on pack | USP |
Supplement Facts panel (photo-read):
| Ingredient | Amount per serving | Reading confidence |
|---|---|---|
| Potassium (from 550 mg Potassium Gluconate) | 90 mg | High clearly legible in the photo |
Claims printed on the packaging:
“Helps Control Activity of the Heart Muscle” · “EASY ABSORPTION” · “Potassium helps regulate water balance within the body. It works to control the activity of the heart muscle, nervous sy” · “No Artificial Colors” · “No Artificial Flavors” · “No Preservatives” · “No Yeast, Starch or Gluten”
Read by a vision model from 2 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Where it sells
A brand storefront was found, but no exact-product price was published or identity-bound at build time.
Brand store naturemade.com: 173 supplement products (+22 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
No knowledge-base entry yet for this formula's active ingredients — entries are added as the KB grows. Absence of a science card is a coverage gap, not a judgment.
Ingredient science — NIH references
Potassium — NIH ODS · MedlinePlus · PubMed (16,128) · no UL; supplements capped at 99 mg OTC
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 declared amount and the reference are shown for your own judgment. LookCloser gives no medical advice.
Record lc-4a550f0b · built July 22, 2026 · lookcloser.ai · corrections@lookcloser.ai