Isopure Zero Carb Protein Powder, Unflavored, 3 lb (1.36 kg) supplement bottle
Isopure

Zero Carb Protein Powder, Unflavored, 3 lb (1.36 kg)

What We Researched
9 active ingredients analyzed · 2 inactive ingredients decoded · 1 brand certification checked · 3 retailers compared · Last updated: Mar 2026
72
Product Score Fair
67
Brand Score Fair

Product Analysis

Transparency Very Good

Supplement Facts

IngredientAmount% DV
Calcium 80 mg 6%
Bioavailability Excellent

Absorption Rating

  • Calcium Good
Other Ingredients Excellent

Fillers & Additives

  • Whey Protein Isolate
  • Soy Lecithin
Efficacy Very Poor

Dosage Analysis

  • Calcium 80 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 100
Total Fat 0 g 0%
Cholesterol 5 mg 2%
Sodium 160 mg 7%
Total Carbohydrate 0 g 0%
Total Sugars 0 g
Includes 0 g Added Sugars 0%
Protein 25 g 50%
Calcium 80 mg 6%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Whey Protein Isolate Generally_safe

It is used as a protein source and to add bulk.

Soy Lecithin Safe

Helps blend oil and water-based ingredients. Common allergen.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$113$112$111$110$109 Mar 12 $111.00
iHerb

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

Brand Trust Report
Isopure

Founded 1998 · Downers Grove, IL, United States · 26 products · theisopurecompany.com/

Certifications

1 certification
Informed Sport Verified Source

Transparency

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

Violation History

3 incidents
Prop 65 Lead2025-04-11Source
Lawsuit Deceptive packaging with approximately 30% empty space ('slack-fill').2015Source
Lawsuit Misrepresenting the amount of whey protein in products ('protein-spiking').2014Source
Related Supplements
Frequently Asked Questions
Is Isopure Zero Carb Protein Powder, Unflavored a good supplement?

Isopure Zero Carb Protein Powder, Unflavored, 3 lb (1.36 kg) received a product quality score of 72/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 9 active ingredients with 47 servings per container. Of the 2 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, Isopure, holds a brand trust score of 67/100 with 1 verified certifications including Informed Sport.

What are the ingredients in Isopure Zero Carb Protein Powder, Unflavored?

Isopure Zero Carb Protein Powder, Unflavored contains 9 active ingredients: Calories (100), Total Fat (0 g), Cholesterol (5 mg), Sodium (160 mg), Total Carbohydrate (0 g), Total Sugars (0 g), and 3 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Isopure Zero Carb Protein Powder, Unflavored safe to take?

Isopure Zero Carb Protein Powder, Unflavored, 3 lb (1.36 kg) 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 Isopure a trustworthy supplement brand?

Isopure receives a brand trust score of 67/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1998 and headquartered in Downers Grove, IL, United States, the company offers 26 products in their lineup. They hold 1 verified certifications including Informed Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Isopure has 3 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. 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.