“Magnesium 100 mg per serving”
Evidence →The label promises 100 mg per serving. The panel says 100 mg. They match.
Exact product checked · GTIN 00755571023018Metagenics · checked Jul 27, 2026🇺🇸 USPTO wordmark owner · METAGENICS, INC. · CALIFORNIA, USA; DELAWARE, USA
Quick read · Metagenics
Magnesium Glycinate | Metagenics
Checked against public sources on July 27, 2026 · LookCloser does not sell or recommend supplements.
120tablets
120servings per container
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 100 mg of Magnesium
What a serving costs$0.28per serving, at the checked price
Is it tested?No testing claim made
Who’s behind it?🇺🇸METAGENICS, INC.corporation; limited liability company · CALIFORNIA, USA; DELAWARE, 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 confirmedno contradictions · brand-level recall on file
The label itself
What the Supplement Facts panel says
| Magnesium (as magnesium bis-glycinate) | 100 mg |
|---|
Printed on the package: Vegetarian · Gluten-free · Dairy-free · Non-GMO
We read 1 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. 1 could not be fully confirmed from public sources.
✓Matches the label1
◐Partly confirmed1
“QUALITY & EVERYDAY STRESS RELIEF- Magnesium glycinate supports restful sleep and helps the body manage everyday stress-an ideal addition to an…”
Evidence →Ingredient evidence exists; on dose: label states 100 mg/serving — about 24% of the adult daily reference (adult RDA 310–420 mg elemental; NIH sets 350 mg/day as the supplemental upper level for elemental magnesium). A single serving isn’t meant to supply a full day, so this is context, not a shortfall. Caveat: chelate labels (glycinate, citrate) often state compound mass, which reads ~5–7× higher than elemental magnesium — the Supplement Facts panel settles which is meant.
Ingredient research can support context, but it is not a trial of this exact product.
Quick read · 6 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. Metagenics, Inc. recalled a different product on July 3, 2014. FDA has since closed that case. The recalled item was “UltraBalance Protein Powder, Net Wt. 14.8 oz (420g)”. …
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 100 mg; the photo-read Supplement Facts panel shows Magnesium (as magnesium bis-glycinate) at 100 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 · 1 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 findingCheckedWho is behind it?
The barcode identity checks out · 755571023018.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
The brand's store lists this exact barcode as “Magnesium Glycinate | Metagenics” (variant: Default Title) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingPublic contextWill you get what you pay for?
Reaching a studied dose costs about $17/month
Comparing cost at a research-relevant amount shows how quickly the package is used and what the routine actually costs.
Evidence and sources
At 2.0 serving(s) a day to reach the low end of the studied range (200–420 mg), this product runs roughly $17 per month. A price observation, not a recommendation.
Locked evidence record →Open the full source-linked findingCheckedCan you trust the review pattern?
Reviews rose from 263 to 352 between July 3, 2025 and July 9, 2026 — no sudden jump.
A count that moves steadily is ordinary. A sudden burst is what deserves a closer look.
Evidence and sources
Written reviews rose from 263 to 352 between July 3, 2025 and July 9, 2026. The largest rise inside any single 30-day window was about 13, so the count moved in steps rather than in one burst.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- We have not found a public label filing for this exact product.
- Barcode checksum is valid; no independent product record was found.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
🇺🇸
METAGENICS, INC.Corporation; Limited Liability Company · exact supplement-class mark for METAGENICS
Filed address
100 Avenida La Pata, San Clemente, CALIFORNIA 92672, 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
The label amount is shown beside the range used in the linked ingredient studies.
Dose vs research
Magnesium
STUDIED RANGE0525 mg
100 mg per serving — below the 200–420 mg/day used in the linked studies.
Linked ingredient research · label amount, not a recommendation
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 100 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.
Where it sells
Price check for this exact product
Brand website
Exact UPC/GTIN match$33.75
$0.28 per labeled serving
matching UPC/GTIN · checked Jul 27, 2026
View on Brand website ↗Amazon
Exact UPC/GTIN match$33.75
$0.28 per labeled serving
matching UPC/GTIN · checked Jul 27, 2026
View on Amazon ↗iHerb
Exact UPC/GTIN match$33.75
$0.28 per labeled serving
matching UPC/GTIN · checked Jul 27, 2026
View on iHerb ↗Target
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Target ↗Walmart
Not confirmedNo exact listing saved
We only show a price when the seller publishes the same barcode as the bottle. We haven’t found that match here.
Search Walmart ↗Same UPC/GTIN observed across 3 sellers at the same price at check time.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
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.
Record built July 27, 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.