Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored supplement bottle
Natural Factors

Organic Low Fodmap† Reliefiber®, Unflavored Review

What We Researched
6 active ingredients analyzed · 5 brand certifications checked · Page generated: Sep 2026
93
Product Score Excellent
100
Brand Score Excellent

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 5 g 2%‡
Reliefiber (Sunfiber® organic guar fiber) 5 g **
Bioavailability Very Good

Absorption Rating

  • Total Carbohydrates Fair
  • Reliefiber (Sunfiber® organic guar fiber) Good
Other Ingredients Excellent

Fillers & Additives

No inactive ingredient data available.

Efficacy Excellent

Dosage Analysis

  • Reliefiber (Sunfiber® organic guar fiber) 5 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 20
Total Carbohydrates 5 g 2%‡
Dietary Fiber 4 g 14%‡
Soluble Fiber 4 g
Sodium 5 mg <1%
Reliefiber (Sunfiber® organic guar fiber) 5 g **
Brand Trust Report
Natural Factors

Founded 1950 · Coquitlam, British Columbia, Canada · 832 products · naturalfactors.com

Certifications

5 certifications
B Corp Certified Source available Primary evidence
Usp Verified Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Non Gmo Project Source available Primary evidence
Usda Organic Source available Primary evidence

Transparency

4 claims
Third Party Testing Claim — Verified Evidence available Evidence
Testing Lab Disclosure — Verified Evidence available Evidence
In House Testing — Verified Evidence available Evidence

Violation History

5 incidents
Prop 65 Lead2025-10-31 Source available Primary source
Recall Hi Potency B Complex, RevitalX, Super Multi® IRON FREE2024-07-19 Source available Primary source
Lawsuit Products labeled as containing glucosamine sulfate did not contain the ingredient.2021 Source available Primary source
Prop 65 Lead2016-01-13 Source available Primary source
Recall Natural Factors L-Arginine 500mg2006-04-05 Source available Primary source
Related Supplements
Frequently Asked Questions
Is Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored a good supplement?

Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored received a product quality score of 93/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 6 active ingredients The manufacturer, Natural Factors, holds a brand trust score of 100/100.

What are the ingredients in Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored?

Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored contains 6 active ingredients: Calories (20), Total Carbohydrates (5 g), Dietary Fiber (4 g), Soluble Fiber (4 g), Sodium (5 mg), Reliefiber (Sunfiber® organic guar fiber) (5 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored safe to take?

GoodSupp reviewed the inactive-ingredient data available for Natural Factors Organic Low Fodmap† Reliefiber®, Unflavored. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Natural Factors a trustworthy supplement brand?

Natural Factors receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1950 and headquartered in Coquitlam, British Columbia, Canada, the company offers 832 products in their lineup. Note: Natural Factors has 5 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. 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.