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Isopure Zero/Low Carb Whey Protein Isolate Review

Unique in the market for including a full vitamin/mineral blend (25+ micronutrients) alongside the protein — more of a meal replacement approach. Zero Carb version is truly 0 carb. CLP Clean 16 Purity

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By Alec & Michael•9 min read
✓ Updated Apr 20264/10 Score
Isopure Zero/Low Carb Whey Protein Isolate

Isopure Zero/Low Carb Whey Protein Isolate.

Zero/Low Carb Whey Protein Isolate

Zero/Low Carb Whey Protein Isolate

★★★★★4 / 10

Unique in the market for including a full vitamin/mineral blend (25+ micronutrients) alongside the protein — more of a meal replacement approach. Zero Carb version is truly 0 carb.

Formulation Quality
1.5
Testing & Transparency
5
$1.22/serving
Detailed Scoring

Evident Ratings

Zero/Low Carb Whey Protein Isolate

Sub-scores are category scores on a 1–5 scale, shown out of 10.

4
out of 10
1.6/10
5/10
6/10
4.6/10
4.6/10
Price per serving: $1.22/serving
Our Findings

What We Found

What we liked

Third-party tested (Informed Choice, Clean Label Project Clean 16)

No added sugar

Verified safe for heavy metals

25g protein per serving

Our concerns

Contains gums (Xanthan Gum)

Contains natural flavors

Contains soy lecithin

Uses artificial sweeteners

Our Verdict

Unique in the market for including a full vitamin/mineral blend (25+ micronutrients) alongside the protein — more of a meal replacement approach. Zero Carb version is truly 0 carb.

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Zero/Low Carb Whey Protein Isolate

Isopure

Zero/Low Carb Whey Protein Isolate

Researched and scored by Evident Reviews using our published criteria (owned brands disclosed)High confidence

4.0
Overall
Material Safety
1.6/10
Trust & Reputation
5/10
Value & Policy
6/10
Features
4.6/10
Firsthand testing
4.6/10
Material & Safety
Third-Party Testing
Informed Choice, Clean Label Project Clean 16Verified
Heavy Metals Testing
Clean Label Project: non-detectable heavy metals (Clean 16 Purity Award). Zero Carb version confirmed safe.Verified
Clean Label Project
Clean 16 Purity AwardVerified
USDA Organic
NoClaimed
Trust & Reputation
Amazon Rating
4.1 (28,555 reviews)Verified
Amino Acid Profile Disclosed
YesVerified
Red Flags
Informed Choice certification may have lapsed. Contains soy lecithin, xanthan gum, artificial sweetener/flavor. Added L-Glutamine is an amino spiking indicator (though likely at low levels). Added vitamin/mineral blend increases complexity.Verified
Value & Policy
Price
$1.22–$2.07/serving (varies by size)Verified
Price Per Serving
$1.22Verified
Features
Natural Flavors
Contains: Contains 'Natural and Artificial Flavor'Claimed
Gums
Contains: Xanthan GumClaimed
Soy Lecithin
Contains: Contains soy lecithinClaimed
Added Sugar
NoneVerified
Sweetener
SucraloseVerified
Protein Source Category
Animal-BasedVerified
Protein Source
Whey IsolateVerified
Made In
USAClaimed
GMP Certified
YesVerified
Manufacturing Location
USAClaimed

Background

One of the original pure whey isolate brands. Known for the clear/infusion-style protein drinks. Part of the Glanbia family (same parent as ON and Dymatize). Lactose-free is a key differentiator.

Full category comparison

Best Protein Powder →