“Potassium 500 mg per serving”
Evidence →The label promises 500 mg per serving. The panel says 500 mg. They match.
Exact product checked · GTIN 00810110791428Dr. Berg Nutritionals · checked Jul 21, 2026 · on sale since Jan 8, 2026🇺🇸 USPTO wordmark owner · The Health & Wellness Center Inc. · VIRGINIA, USA
Quick read · Dr. Berg Nutritionals
Dr. Berg Potassium Tri-Blend Complex – 500 mg Potassium…
Checked against public sources between July 21 and July 24, 2026 · LookCloser does not sell or recommend supplements.
90capsules · 45 servings
Does the marketing hold up?
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.
Is the dose real?✓Listing and panel agreeboth say 500 mg of Potassium
What a serving costsNo price found for this exact barcode
Is it tested?Claimed — no lab or certificate found
Who’s behind it?🇺🇸The Health & Wellness Center Inc.corporation · VIRGINIA, USA
Is it the real thing?✓Barcode matches outside records
Trouble on record?Brand history — not this product
“Couldn’t verify” means we looked and found no public proof — not a mark against the product. Most supplement claims cannot be independently verified by anyone, so grey is the normal state of this industry.
1✓ checked out1◖ partly confirmed1? couldn’t verifyno contradictions · brand-level recall on file
The label itself
What the Supplement Facts panel says
| Vitamin B6 (as pyridoxal-5-phosphate) | 2 mg |
|---|---|
| Magnesium (as magnesium bisglycinate) | 40 mg |
| Potassium (as potassium citrate, potassium malate, potassium bicarbonate) | 500 mg |
| Taurine | 100 mg |
Printed on the package: NON GMO · USA · PACKAGED IN THE USA · NON-GMO · NO FILLERS · NO HEXANE · NO PRESERVATIVES · Doctor Formulated
We read 4 lines from the package photograph. It is our transcript of the label, not the manufacturer’s panel, and it may be incomplete.
Marketing claims, checked
The checks, one by one
1 promise checks out. 2 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed1
“Potassium Tri-Blend Complex – 500 mg Potassium Supplement for Muscle & Nerve Support* – Maximum Strength Potassium Formula w/Magnesium, B6 &…”
Evidence →Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Ingredient research can support context, but it is not a trial of this exact product.
?Couldn’t verify independently1
“𝗖𝗢𝗠𝗣𝗟𝗘𝗧𝗘 𝗣𝗢𝗧𝗔𝗦𝗦𝗜𝗨𝗠 𝗖𝗢𝗠𝗣𝗟𝗘𝗫 + 𝗖𝗟𝗘𝗔𝗡 𝗙𝗢𝗥𝗠𝗨𝗟𝗔: 4X lab tested for purity and”
Evidence →No named laboratory or lot-specific certificate was found for this exact product. No exact brand product page was available for a document check. NSF, IFOS, USP, and Informed-Sport were not checked in this record. This is a public-evidence limit, not a finding that testing did not occur.
We looked and found no public proof. That does not count against the product.
Quick read · 3 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Needs explanationAny trouble in public records?
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.
Evidence and sources
This recall is not about the product on this page. Health & Wellness Center, Inc. recalled a different product on September 24, 2021. FDA has since closed that case. The recalled item was “Dr. Berg Nutritionals, Liquid Vitamin D with Zinc Dietary Supplement ( Liquid Vitamin D )…”
Locked evidence record →Open the full source-linked findingCheckedIs the label honest?
Listing claim matches the Supplement Facts panel
The label promise and the Supplement Facts amount agree.
Evidence and sources
The listing claims 500 mg; the photo-read Supplement Facts panel shows Potassium (as potassium citrate, potassium malate, potassium bicarbonate) at 500 mg per serving — the listing text and its photo-read panel agree; this is internal consistency, not independent testing.
Locked evidence record →Open the full source-linked findingCheckedIs the label honest?
Every ingredient shows its amount · 4 ingredients listed.
Every ingredient shows its real amount — nothing is hidden in a proprietary blend.
Evidence and sources
The panel gives a per-ingredient amount rather than hiding quantities inside a proprietary blend, so each one can be compared to published research.
Locked evidence record →Open the full source-linked findingWhat remains open 3
- We have not found a public label filing for this exact product.
- Barcode checksum is valid; no independent product record was found.
- No dated review-history series is on file yet.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
The Health & Wellness Center Inc.Corporation · exact supplement-class mark for DR. BERG NUTRITIONALS
Filed address
912 Drew St. Suite 203-13, Clearwater, Florida 33755, UNITED STATES
USPTO identifies the public owner or applicant behind this brand wordmark. This does not by itself identify the product manufacturer or prove where the product was made. Open USPTO source ↗
Research behind the findings
Dose and research context
We could not match an amount on this product to a studied range for the same ingredient, so these links are ingredient background rather than a measurement of this product.
Background reading
What the research says about these amounts
Not a score. Studies disagree with each other and change over time, so this sits beside the evidence rather than counting toward it — it is here so you can read the sources yourself.
The panel lists 40 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits below that range.
0studied 200 mg–420 mg
Study ranges differ between trials and change as research changes. This is background reading, not a pass, a failure, or a recommendation.
Buying options
Where you can check or buy it
Open related seller leads before buying, then confirm the flavor, count, and serving size. Their prices are visible, but LookCloser does not claim savings until the pages share a UPC/GTIN.
Amazon
Submitted listingNo price confirmed
No current offer was available via Keepa on 2026-09-02.
View on Amazon ↗Brand website
Official storefrontNo price confirmed
Open the brand storefront to search manually.
No defensible same-product page was saved from the brand catalog.
Check brand website ↗iHerb
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search iHerb ↗Target
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Target ↗Walmart
Not confirmedNo price confirmed
No matching product page was confirmed in the current record. Search results cannot be attached as this product until the UPC/GTIN matches.
Search Walmart ↗Prices and stock are point-in-time observations. Related pages are never used as product evidence. No affiliate links; LookCloser earns nothing from these sellers.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built September 03, 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.