Full record · 037000741343 · back to the summary
Metamucil 4-in-1 Psyllium Husk GLP-1 Friendly Fiber Supplement
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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.
Every check we ran
Intake method matches the research
Nothing in this listing contradicts how these ingredients were studied (prebiotic fiber). For example, prebiotic fiber: daily use; effects build over weeks as gut flora shift. Sources: NIH ODS — Fiber overview (MVMS context), PubMed search: inulin prebiotic randomized trial.
UPC independently corroborated
Open Food Facts resolves 037000741343 to "4-in-1 Fiber" (Meta Mucil) — consistent with this listing.
No data yet: Label math could not be verified
What this means: the listing doesn't publish net weight, unit count, per-serving dose, servings per container, so the dose claim can't be checked against physics from public data. That's neither a pass nor a strike — but it does mean you're taking the label on faith. Checkable products publish these numbers.
Not found in NIH's DSLD label registry
The NIH Dietary Supplement Label Database has no matching label yet. Ingestion lags the market — recorded as a gap, not a strike.
180-day review-count history is on file
Exact-listing history records written-review counts from 816 on 2026-01-26 to 971 on 2026-07-14 (net +155). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.
What the listing promises — claim by claim
Why is this shown?
| Claim | Status | What we found |
|---|---|---|
| Professional-endorsement claim “…upplementing with Metamucil powders daily #1 DOCTOR RECOMMENDED fiber brand. Trusted for over 90 years 4-in-…” | Marketing credential We looked for: who the professionals are, whether they were compensated, and what the endorsement covers | A professional endorsement is a marketing credential, not clinical evidence. Public sources don’t establish who was consulted, whether they were paid, or what specifically they reviewed. |
| Benefit claim “…1 health benefits! PSYLLIUM HUSK FIBER helps support: digestive health*, heart health by lowering…” | Partly supported We looked for: whether the ingredient doses on the label match the doses used in published research | Published research exists for ingredients in this formula — see Related research below. Whether this product’s doses match those studies could not be confirmed. |
“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 — 1 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
| UPC (barcode) — also our record ID | 037000741343 |
| Brand | Metamucil |
| Source listing identifier | B0013I4WLG |
| Retailer listing title | Metamucil 4-in-1 Psyllium Husk GLP-1 Friendly Fiber Supplement, Real S… show full titleMetamucil 4-in-1 Psyllium Husk GLP-1 Friendly Fiber Supplement, Real Sugar, 114 tablespoons, Orange Flavored, Daily Fiber Powder for Digestive Health, made with Plant-Based Psyllium Husk Fiber |
From the label (photo-read)
| Serving size | 114 Tablespoons |
| Net weight | NET WT 48.2 OZ (3 LBS) 1.36 kg |
No Supplement Facts panel appears in the listing photos — the full per-ingredient table isn't shown to buyers before purchase. Recorded as a transparency gap, not a strike.
Claims printed on the packaging:
“4-in-1 FIBER” · “HELPS SUPPORT:” · “Appetite Control*” · “Heart Health by Lowering Cholesterol†” · “Healthy Blood Sugar Levels*” · “Digestive Health*” · “4 HEALTH BENEFITS*” · “IN 1 DAILY FIBER”
Read by a vision model from 7 listing photos — verbatim extraction; OCR errors possible. Spot a mistake? It will be corrected on review.
Related research & consistency
prebiotic fiber (inulin-type) — NIH ODS — Fiber overview (MVMS context) · PubMed search: inulin prebiotic randomized trial · WebMD search: inulin · ClinicalTrials.gov — 22 registered studies
ℹ Use pattern in research: daily use; effects build over weeks as gut flora shift.
These notes state where label numbers and marketing framing sit relative to published research — documentation for your own judgment, not medical advice. LookCloser does not advise for or against taking any supplement.
Record 037000741343 · built July 21, 2026 · lookcloser.ai · corrections@lookcloser.ai