Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU supplement bottle
Jarrow Formulas

Jarro-Dophilus plus FOS 3.4 Billion CFU

What We Researched
2 active ingredients analyzed · 7 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
68
Product Score Fair
83
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Proprietary Probiotic Blend 30 mg †
Inulin (as Fructooligosaccharides) 210 mg †
Bioavailability Very Good

Absorption Rating

  • Proprietary Probiotic Blend Fair
  • Inulin (as Fructooligosaccharides) Good
Other Ingredients Excellent

Fillers & Additives

  • Hydroxypropyl Methylcellulose
  • Water
  • Tapioca Starch
  • Maltodextrin
  • Magnesium Stearate
  • Ascorbic Acid
  • Calcium Phosphate
Efficacy Very Poor

Dosage Analysis

  • Inulin (as Fructooligosaccharides) 210 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Proprietary Probiotic Blend 30 mg †
Inulin (as Fructooligosaccharides) 210 mg †

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Water Safe

Dissolves and carries water-soluble ingredients.

Tapioca Starch Safe

It is used as a filler, binder, or thickener.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Ascorbic Acid Safe

Prevents oxidation and provides vitamin C.

Calcium Phosphate Generally_safe

It is used as a filler and anticaking agent in supplements.

Price Comparison

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Jarrow Formulas

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

Certifications

5 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

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 Jarro-Dophilus plus FOS 3.4 Billion CFU a good supplement?

Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU received a product quality score of 68/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 2 active ingredients with 200 servings per container. Of the 7 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Jarrow Formulas, holds a brand trust score of 83/100 with 5 verified certifications including Consumerlab, Fda Gmp Inspections, Non Gmo Project, Usda Organic.

What are the ingredients in Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU?

Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU contains 2 active ingredients: Proprietary Probiotic Blend (30 mg), Inulin (as Fructooligosaccharides) (210 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU safe to take?

Jarrow Formulas Jarro-Dophilus plus FOS 3.4 Billion CFU 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 83/100 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 5 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. 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.