Metamucil 4-in-1 Fiber supplement bottle
Metamucil

4-in-1 Fiber

What We Researched
1 active ingredient analyzed · 2 inactive ingredients decoded · 1 brand certification checked · Last updated: Mar 2026
66
Product Score Fair

Product Analysis

Transparency Very Poor

Supplement Facts

IngredientAmount% DV
Psyllium Husk — —
Bioavailability Excellent

Absorption Rating

  • Psyllium Husk Good
Other Ingredients Excellent

Fillers & Additives

  • Maltodextrin
  • Citric Acid
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Supplement Facts

Ingredient Amount % Daily Value
Psyllium Husk

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Brand Trust Report
Metamucil

Founded 1934 · Cincinnati, Ohio, USA · 16 products · metamucil.com/

Certifications

1 certification
Consumerlab Verified Source

Transparency

1 claim

Violation History

4 incidents
Recall Metamucil Capsule products (specifics not fully detailed in the notice)2024-02-01Source
Prop 65 Lead2023-08-02Source
Lawsuit Products contain dangerous levels of lead and are falsely advertised as safe and healthy.2023Source
Lawsuit Products with added sugar are falsely marketed with health benefits related to blood sugar, appetite control, and digestive health.2022Source
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Frequently Asked Questions
Is Metamucil 4-in-1 Fiber a good supplement?

Metamucil 4-in-1 Fiber received a product quality score of 66/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients Of the 2 inactive ingredients, 1 are rated safe and 0 are flagged for review.

What are the ingredients in Metamucil 4-in-1 Fiber?

Metamucil 4-in-1 Fiber contains 1 active ingredients: Psyllium Husk. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Metamucil 4-in-1 Fiber safe to take?

Metamucil 4-in-1 Fiber has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.