Jarrow Formulas Prebiotic Inulin-FOS supplement bottle
Jarrow Formulas

Prebiotic Inulin-FOS Review

What We Researched
3 active ingredients analyzed · 7 brand certifications checked · Page generated: Sep 2026
93
Product Score Excellent
98
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 4 g 1%
Inulin (as Fructooligosaccharides) 3 g †
Bioavailability Very Good

Absorption Rating

  • Total Carbohydrates Fair
  • Inulin (as Fructooligosaccharides) Good
Other Ingredients Excellent

Fillers & Additives

No inactive ingredient data available.

Efficacy Excellent

Dosage Analysis

  • Inulin (as Fructooligosaccharides) 3 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 5 kcal
Total Carbohydrates 4 g 1%
Inulin (as Fructooligosaccharides) 3 g †
Brand Trust Report
Jarrow Formulas

Founded 1977 · Los Angeles, California, USA · 138 products · jarrow.com/

Certifications

7 certifications
Consumerlab Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence
Non Gmo Project Source available Primary evidence
Usda Organic Source available Primary evidence
Vegan Certified Source available Primary evidence
IGEN Non-GMO Tested Supporting evidence unavailable
NSF Certified Supporting evidence unavailable

Transparency

3 claims
Third Party Testing Claim — Verified Evidence available Evidence
In House Testing — Verified Evidence available Evidence

Violation History

2 incidents
Recall Liquid L-Carnitine2018-01-15 Source available Primary source
Prop 65 Lead2017-09-07 Source available Primary source
Related Supplements
Frequently Asked Questions
Is Jarrow Formulas Prebiotic Inulin-FOS a good supplement?

Jarrow Formulas Prebiotic Inulin-FOS 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 3 active ingredients with 47 servings per container. The manufacturer, Jarrow Formulas, holds a brand trust score of 98/100.

What are the ingredients in Jarrow Formulas Prebiotic Inulin-FOS?

Jarrow Formulas Prebiotic Inulin-FOS contains 3 active ingredients: Calories (5 kcal), Total Carbohydrates (4 g), Inulin (as Fructooligosaccharides) (3 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Jarrow Formulas Prebiotic Inulin-FOS safe to take?

GoodSupp reviewed the inactive-ingredient data available for Jarrow Formulas Prebiotic Inulin-FOS. 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 Jarrow Formulas a trustworthy supplement brand?

Jarrow Formulas receives a brand trust score of 98/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1977 and headquartered in Los Angeles, California, USA, the company offers 138 products in their lineup. Note: Jarrow Formulas has 2 historical regulatory incidents on record, which are factored into the trust score.

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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 — 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.