“YOUR WHOLE BODY (1): Support heart, nerve, bone, and muscle health with magnesium glycinate”
Evidence →Published research exists for ingredients in this formula. Whether this product’s doses match those studies could not be confirmed.
Exact product checked · GTIN 00074312012556Nature's Bounty · checked Aug 2, 2026 · on sale since Feb 27, 2023USPTO returned 3 exact supplement-class owner records · inspect the identity trail
Quick read · Nature's Bounty
Nature's Bounty Calm Magnesium Glycinate…
Checked against public sources on August 2, 2026 · LookCloser does not sell or recommend supplements.
90capsules · 30 servings
Does the marketing hold up?
Registered owner records: NATURE'S BOUNTY, INC. · NATURE'S BOUNTY (NY), INC. · Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND). The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Is the dose real?✓Listing and panel agreeboth say 360 mg of Magnesium
What a serving costs$0.50per serving, at the checked price
Is it tested?No testing claim made
Who’s behind it?USPTO lists 3 owner recordssame brand name, more than one registrant — we don’t choose between them
Is it the real thing?✓Barcode matches outside records
Trouble on record?✓No recalls found
“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◖ partly confirmedno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Magnesium (as Magnesium Glycinate) | 360 mg |
|---|
Printed on the package: Non-GMO · No Milk · No Lactose · No Soy · No Gluten · No Wheat · No Yeast · No Fish
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
The public sources did not settle the marketing promises on this label.
◐Partly confirmed1
Ingredient research can support context, but it is not a trial of this exact product.
Quick read · 3 useful findings
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
Public contextWho is behind it?
Registered owner records: NATURE'S BOUNTY, INC. · NATURE'S BOUNTY (NY), INC. · Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND)
The public ownership record is ambiguous. We show the exact candidates instead of choosing one by name similarity.
Evidence and sources
USPTO returned multiple live supplement-class records for the exact brand wordmark: NATURE'S BOUNTY, INC., NATURE'S BOUNTY (NY), INC., Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND). …
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 · 074312012556.
The barcode matches, so we are checking the right product rather than a look-alike.
Evidence and sources
Open Food Facts resolves 074312012556 to "Magnesium Glycinate" (Nature's Bounty) — consistent with this listing.
Locked evidence record →Open the full source-linked findingWhat remains open 2
- No FDA recall matched this brand in the current search.
- We have not found a public label filing for this exact product.
These are evidence gaps, not strikes against the product.
Who owns the brand wordmark?
The brand has 3 exact supplement-class records
These are the USPTO records behind the brand name. We show them all rather than choosing one by similarity.
🇺🇸NATURE'S BOUNTY, INC.
NEW YORK, USA; SWITZERLAND · Registration 0963384
55 NORTH MALL, PLAINVIEW, NEW YORK 11803, UNITED STATES
Goods covered by this record
US 018: FOOD SUPPLEMENT CONTAINING VITAMINS AND MINERALS.; US 046: CONCENTRATED PROTEIN FOOD.
🇺🇸NATURE'S BOUNTY (NY), INC.
NEW YORK, USA; SWITZERLAND · Registration 5165421
2100 SMITHTOWN AVENUE, LEGAL DEPT., RONKONKOMA, NEW YORK 11779, UNITED STATES
Goods covered by this record
IC 005: Dietary and nutritional supplements; Food supplements; Herbal supplements; Probiotic supplements; Vitamin and mineral supplements.
🇨🇭Société des Produits Nestlé S.A. (société anonyme (sa); SWITZERLAND)
SWITZERLAND · Registration 7583162
SWITZERLAND); CH-1800 Vevey, SWITZERLAND
Goods covered by this record
IC 005: Vitamins; dietary supplements; mineral supplements; nutritional supplements; vitamin preparations; concentrated protein dietary supplements; plant-based dietary supplements; dietetic supplements adapted for medical use; food supplements; probiotic supplements.
This answers who owns registrations for the brand wordmark. It does not by itself prove which entity made, imported, or sold this specific product. 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
360 mg per serving — within 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 360 mg of magnesium per serving. Studies we found used 200 mg–420 mg a day, so this sits inside 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
Amazon
Exact UPC/GTIN match$14.99
$0.50 per labeled serving
matching UPC/GTIN · checked Aug 2, 2026
View on Amazon ↗iHerb
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 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 ↗Only one exact price was available at build time; prices change by date, seller, and promotion.
Reference prices only · no affiliate links · every compared seller must publish the matching UPC/GTIN.
Want to inspect the evidence?
The full report shows every source, the exact unresolved question, and the documentation that would settle it.
Record built August 02, 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.