Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free supplement bottle
Isopure

Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free

What We Researched
30 active ingredients analyzed · 7 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
61
Product Score Fair
67
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Calcium 340.0 mg 25%
Potassium 370.0 mg 8%
Vitamin A 380.0 mcg 40%
Vitamin C 15.0 mg 15%
Vitamin E 5.0 mg 35%
Vitamin K 20.0 mcg 15%
Thiamin 0.3 mg 25%
Riboflavin 0.4 mg 30%
Niacin 5.0 mg 30%
Vitamin B6 0.5 mg 30%
Folate 160.0 mcg DFE 40%
Vitamin B12 3.3 mcg 140%
Biotin 75.0 mcg 250%
Pantothenic Acid 2.5 mg 50%
Phosphorus 280.0 mg 20%
Iodine 38.0 mcg 25%
Magnesium 100.0 mg 25%
Zinc 4.2 mg 40%
Selenium 17.0 mcg 30%
Copper 0.6 mg 70%
Manganese 0.5 mg 20%
Chromium 30.0 mcg 90%
Molybdenum 18.0 mcg 40%
Chloride 360.0 mg 15%
Bioavailability Very Good

Absorption Rating

  • Calcium Good
  • Potassium Good
  • Vitamin A Good
  • Vitamin C Fair
  • Vitamin E Good
  • Vitamin K Good
  • Thiamin Good
  • Riboflavin Good
  • Niacin Good
  • Vitamin B6 Fair
  • Folate Fair
  • Vitamin B12 Fair
  • Biotin Good
  • Pantothenic Acid Good
  • Phosphorus Good
  • Iodine Good
  • Magnesium Good
  • Zinc Fair
  • Selenium Good
  • Copper Fair
  • Manganese Good
  • Chromium Fair
  • Molybdenum Good
  • Chloride Good
Other Ingredients Good

Fillers & Additives

  • Whey Protein Isolate
  • Vitamin And Mineral Blend (Dicalcium Phosphate, Potassium Chloride, Magnesium Oxide, Ascorbic Acid, Sodium Chloride, Vitamin E Acetate, Zinc Sulfate, D-Biotin, Niacinamide, Silicon Dioxide, Calcium D-Pantothenate, Vitamin A Acetate, Copper Sulfate, Manganese Sulfate, Pyridoxine Hydrochloride, Riboflavin, Potassium Lodide, Phylloquinone, Thiamin Hydrochloride, Sodium Selenite, Cyanocobalamin, Chromium Chloride, Folic Acid, Sodium Molybdate)
  • Soy Lecithin
  • Natural and Artificial Flavor
  • L-Glutamine
  • Sucralose
  • Yellow 5 High
Efficacy Very Poor

Dosage Analysis

  • Calcium 340.0 mg Under-dosed
  • Potassium 370.0 mg Under-dosed
  • Vitamin A 380.0 mcg Under-dosed
  • Vitamin C 15.0 mg Under-dosed
  • Vitamin E 5.0 mg Under-dosed
  • Vitamin K 20.0 mcg Under-dosed
  • Thiamin 0.3 mg Under-dosed
  • Riboflavin 0.4 mg Under-dosed
  • Niacin 5.0 mg Under-dosed
  • Vitamin B6 0.5 mg Under-dosed
  • Folate 160.0 mcg DFE Under-dosed
  • Vitamin B12 3.3 mcg Effective
  • Biotin 75.0 mcg Effective
  • Pantothenic Acid 2.5 mg Under-dosed
  • Phosphorus 280.0 mg Under-dosed
  • Iodine 38.0 mcg Under-dosed
  • Magnesium 100.0 mg Under-dosed
  • Zinc 4.2 mg Under-dosed
  • Selenium 17.0 mcg Under-dosed
  • Copper 0.6 mg Effective
  • Manganese 0.5 mg Under-dosed
  • Chromium 30.0 mcg Under-dosed
  • Molybdenum 18.0 mcg Under-dosed
  • Chloride 360.0 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 100.0 Cal
Total Fat 0.0 g
Cholesterol 10.0 mg 3%
Sodium 240.0 mg 10%
Total Carbohydrate 0.0 g
Protein 25.0 g 50%
Calcium 340.0 mg 25%
Potassium 370.0 mg 8%
Vitamin A 380.0 mcg 40%
Vitamin C 15.0 mg 15%
Vitamin E 5.0 mg 35%
Vitamin K 20.0 mcg 15%
Thiamin 0.3 mg 25%
Riboflavin 0.4 mg 30%
Niacin 5.0 mg 30%
Vitamin B6 0.5 mg 30%
Folate 160.0 mcg DFE 40%
Vitamin B12 3.3 mcg 140%
Biotin 75.0 mcg 250%
Pantothenic Acid 2.5 mg 50%
Phosphorus 280.0 mg 20%
Iodine 38.0 mcg 25%
Magnesium 100.0 mg 25%
Zinc 4.2 mg 40%
Selenium 17.0 mcg 30%
Copper 0.6 mg 70%
Manganese 0.5 mg 20%
Chromium 30.0 mcg 90%
Molybdenum 18.0 mcg 40%
Chloride 360.0 mg 15%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$82$81$80$79$78 $79.99
Target

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
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Frequently Asked Questions
Is Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free a good supplement?

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free received a product quality score of 61/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 30 active ingredients with 44 servings per container. Of the 7 inactive ingredients, 2 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 100% Pure Whey Isolate Protein Powder, Lactose Free?

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free contains 30 active ingredients: Calories (100.0 Cal), Total Fat (0.0 g), Cholesterol (10.0 mg), Sodium (240.0 mg), Total Carbohydrate (0.0 g), Protein (25.0 g), and 24 more. Notable high-dose ingredients include Biotin at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free safe to take?

Isopure Zero Carb 100% Pure Whey Isolate Protein Powder, Lactose Free, Gluten Free 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.

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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.