“CERTIFIED”
Evidence →“GMP-certified” describes factory processes, not what is in the bottle. The claim does not name a certifier or public register that a shopper can check.
Exact product checked · GTIN 00840093128379Nature's Truth · checked Jul 31, 2026 · on sale since Dec 9, 2025🇺🇸 USPTO wordmark owner · Princeton Research, LLC · NEW YORK, USAPackage says manufactured by: Nature's Truth LLC
Quick read · Nature's Truth
Nature'S Truth Prebiotic Daily Fiber Supplement
Checked against public sources on July 31, 2026 · LookCloser does not sell or recommend supplements.
100capsules · 20 servings
Does the marketing hold up?
Ingredient amounts are hidden inside “Organic Rice Extract Blend”. The panel lists “Organic Rice Extract Blend” (50 mg) as a combined amount. A blend total can’t tell you whether any single ingredient reaches a dose used in research.
Is the dose real?Panel read — dose not verified10 ingredients listed; no advertised amount we could confirm against them
What a serving costs$0.69per serving, at the checked price
Is it tested?No testing claim made
Who’s behind it?🇺🇸Princeton Research, LLClimited liability company · NEW YORK, USA
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.
2◖ partly confirmedno contradictions · no recalls
The label itself
What the Supplement Facts panel says
| Calories | 10 |
|---|---|
| Total Carbohydrate | 2 g |
| Dietary Fiber | 2 g |
| Soluble Fiber | <1 g |
| Insoluble Fiber | 1 g |
| Organic Flax Seed | 1,250 mg |
| Organic Oat Hull Fiber | 1,225 mg |
| Organic Fennel Seed | 50 mg |
| Organic Rice Fiber | 50 mg |
| Organic Rice Extract Blend | 50 mg |
Printed on the package: NON-GMO · GLUTEN FREE · VEGAN · Dairy Free · Soy Free · GMP CERTIFIED COMPANY · FDA REGISTERED FACILITY
We read 10 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 confirmed2
“DAILY FIBER: Supports gut microbiome & digestive”
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.
Quick read · 1 useful finding
What is worth knowing.
Headlines first. Open evidence only when you want the source trail.
CheckedWho is behind it?
The barcode identity checks out · 840093128379.
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 “Prebiotic Daily Fiber Supplement” (variant: Default Title) — identity confirmed across retailer listings.
Locked evidence record →Open the full source-linked findingWhat remains open 4
- No FDA recall matched this brand in the current search.
- 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?
🇺🇸
Princeton Research, LLCLimited Liability Company · exact supplement-class mark for NATURE'S TRUTH
Filed address
c/o Jaspan Schlesinger LLP, 300 Garden City Plaza, Garden City, NEW YORK 11530, 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 2 g of prebiotic fiber (inulin-type) per serving. Studies we found used 3 g–10 g a day, so this sits below that range.
0studied 3 g–10 g
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$13.89
$0.69 per labeled serving
matching UPC/GTIN · checked Jul 31, 2026
View on Amazon ↗Brand website
Exact UPC/GTIN match$13.99
$0.70 per labeled serving
matching UPC/GTIN · checked Jul 31, 2026
View on Brand website ↗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 ↗Same UPC/GTIN observed across 2 sellers. Amazon was lowest at $13.89; Brand website was highest at $13.99 — a $0.10 range 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 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.