Jarrow Formulas Glucose Optimizer supplement bottle
Jarrow Formulas

Glucose Optimizer

What We Researched
19 active ingredients analyzed · 10 inactive ingredients decoded · 5 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
82
Product Score Good
83
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Calcium Ascorbate) 50 mg 56%
Vitamin E (as D-Alpha-Tocopherol) 5.5 mg 37%
Thiamine (as Thiamine Mononitrate) 2.5 mg 208%
Niacin (as Niacinamide) 150 mg 938%
Vitamin B6 (as Pyridoxine Hydrochloride) 2.5 mg 147%
Vitamin B12 (as Methylcobalamin) 50 mcg 2083%
Biotin (as D-Biotin) 500 mcg 1667%
Pantothenic Acid (as Calcium D-Pantothenate) 12.5 mg 250%
Magnesium (as Magnesium Malate) 100 mg 24%
Selenium (as Methylselenocysteine) 5 mcg 9%
Manganese (as Manganese Citrate) 0.5 mg 22%
Chromium 100 mcg 286%
Bitter Melon Extract, Wild 375 mg
Gymnema sylvestre 150 mg
Alpha Lipoic Acid 100 mg
Eucalyptus leaf essential Oil Complex 50 mg
Gamma-Tocopherol 50 mg
Resveratrol (as Polygonum cuspidatum) 25 mg
Banaba Leaf Extract 24 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin C (as Calcium Ascorbate) Good
  • Vitamin E (as D-Alpha-Tocopherol) Good
  • Thiamine (as Thiamine Mononitrate) Fair
  • Niacin (as Niacinamide) Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Vitamin B12 (as Methylcobalamin) Good
  • Biotin (as D-Biotin) Good
  • Pantothenic Acid (as Calcium D-Pantothenate) Good
  • Magnesium (as Magnesium Malate) Good
  • Selenium (as Methylselenocysteine) Good
  • Manganese (as Manganese Citrate) Good
  • Chromium Fair
  • Bitter Melon Extract, Wild Good
  • Gymnema sylvestre Fair
  • Alpha Lipoic Acid Fair
  • Eucalyptus leaf essential Oil Complex Fair
  • Gamma-Tocopherol Good
  • Resveratrol (as Polygonum cuspidatum) Fair
  • Banaba Leaf Extract Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Calcium Phosphate
  • Food Starch
  • Modified
  • Croscarmellose Sodium
  • Hydroxypropyl Cellulose
  • Magnesium Stearate
  • Silicon Dioxide
  • Hydroxypropylmethylcellulose
  • Glycerin
Efficacy Fair

Dosage Analysis

  • Vitamin C (as Calcium Ascorbate) 50 mg Under-dosed
  • Vitamin E (as D-Alpha-Tocopherol) 5.5 mg Under-dosed
  • Thiamine (as Thiamine Mononitrate) 2.5 mg Effective
  • Niacin (as Niacinamide) 150 mg High
  • Vitamin B6 (as Pyridoxine Hydrochloride) 2.5 mg Effective
  • Vitamin B12 (as Methylcobalamin) 50 mcg Effective
  • Biotin (as D-Biotin) 500 mcg Effective
  • Pantothenic Acid (as Calcium D-Pantothenate) 12.5 mg Effective
  • Magnesium (as Magnesium Malate) 100 mg Under-dosed
  • Selenium (as Methylselenocysteine) 5 mcg Under-dosed
  • Manganese (as Manganese Citrate) 0.5 mg Under-dosed
  • Chromium 100 mcg Effective
  • Bitter Melon Extract, Wild 375 mg Under-dosed
  • Alpha Lipoic Acid 100 mg Under-dosed
  • Gamma-Tocopherol 50 mg Effective
  • Resveratrol (as Polygonum cuspidatum) 25 mg Under-dosed
  • Banaba Leaf Extract 24 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Calcium Ascorbate) 50 mg 56%
Vitamin E (as D-Alpha-Tocopherol) 5.5 mg 37%
Thiamine (as Thiamine Mononitrate) 2.5 mg 208%
Niacin (as Niacinamide) 150 mg 938%
Vitamin B6 (as Pyridoxine Hydrochloride) 2.5 mg 147%
Vitamin B12 (as Methylcobalamin) 50 mcg 2083%
Biotin (as D-Biotin) 500 mcg 1667%
Pantothenic Acid (as Calcium D-Pantothenate) 12.5 mg 250%
Magnesium (as Magnesium Malate) 100 mg 24%
Selenium (as Methylselenocysteine) 5 mcg 9%
Manganese (as Manganese Citrate) 0.5 mg 22%
Chromium 100 mcg 286%
Bitter Melon Extract, Wild 375 mg
Gymnema sylvestre 150 mg
Alpha Lipoic Acid 100 mg
Eucalyptus leaf essential Oil Complex 50 mg
Gamma-Tocopherol 50 mg
Resveratrol (as Polygonum cuspidatum) 25 mg
Banaba Leaf Extract 24 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Calcium Phosphate Generally_safe

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

Food Starch Unknown
Modified Unknown
Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Hydroxypropylmethylcellulose Unknown
Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

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
Related Supplements
Frequently Asked Questions
Is Jarrow Formulas Glucose Optimizer a good supplement?

Jarrow Formulas Glucose Optimizer received a product quality score of 82/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 19 active ingredients with 60 servings per container. Of the 10 inactive ingredients, 6 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 Glucose Optimizer?

Jarrow Formulas Glucose Optimizer contains 19 active ingredients: Vitamin C (as Calcium Ascorbate) (50 mg), Vitamin E (as D-Alpha-Tocopherol) (5.5 mg), Thiamine (as Thiamine Mononitrate) (2.5 mg), Niacin (as Niacinamide) (150 mg), Vitamin B6 (as Pyridoxine Hydrochloride) (2.5 mg), Vitamin B12 (as Methylcobalamin) (50 mcg), and 13 more. Notable high-dose ingredients include Thiamine at 208% DV, Niacin at 938% DV, Vitamin B12 at 2083% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Jarrow Formulas Glucose Optimizer safe to take?

Jarrow Formulas Glucose Optimizer 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.