Jarrow Formulas Prebiotic Inulin-FOS supplement bottle
Jarrow Formulas

Prebiotic Inulin-FOS Review

What We Researched
3 active ingredients analyzed · 7 brand certifications checked · Last updated: Aug 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 Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
IGEN Non-GMO Tested Verified
NSF Certified Verified

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

2 incidents
Recall Liquid L-Carnitine2018-01-15Source
Prop 65 Lead2017-09-07Source
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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 with 7 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Usda Organic.

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?

Jarrow Formulas Prebiotic Inulin-FOS 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.

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. They hold 7 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Usda Organic. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. 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.