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KOS Organic Plant-Based Protein Review

Mixed bag. Passed Consumer Reports lead testing (good) but independent testing found PFOA — a PFAS 'forever chemical' — in some flavors (bad). Batch COAs available via lot number lookup, which is bett

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By Alec & Michael•9 min read
✓ Updated Apr 20264.5/10 Score
KOS Organic Plant-Based Protein

KOS Organic Plant-Based Protein.

Organic Plant-Based Protein

Organic Plant-Based Protein

★★★★★4.5 / 10

Mixed bag. Passed Consumer Reports lead testing (good) but independent testing found PFOA — a PFAS 'forever chemical' — in some flavors (bad).

Formulation Quality
2
Testing & Transparency
4
$1.50/serving
Detailed Scoring

Evident Ratings

Organic Plant-Based Protein

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

4.5
out of 10
2/10
4/10
4/10
7/10
9/10
Price per serving: $1.50/serving
Our Findings

What We Found

What we liked

Publicly available Certificates of Analysis

No soy lecithin

USDA Organic certified

Verified safe for heavy metals

Our concerns

Contains gums (Organic Acacia Gum)

Contains natural flavors

Our Verdict

Mixed bag. Passed Consumer Reports lead testing (good) but independent testing found PFOA — a PFAS 'forever chemical' — in some flavors (bad).

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Organic Plant-Based Protein

KOS

Organic Plant-Based Protein

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

4.5
Overall
Material Safety
2/10
Trust & Reputation
4/10
Value & Policy
4/10
Features
7/10
Firsthand testing
9/10
Material & Safety
Third-Party Testing
ISO 17025-accredited lab testing; no NSF or Informed SportVerified
COA Availability
Public (batch)Verified
Heavy Metals Testing
Consumer Reports found KOS safe for daily consumption based on lead testing. However, independent testing detected PFOA (a toxic PFAS chemical) in some flavors.Verified
USDA Organic
YesVerified
Trust & Reputation
Amazon Rating
4.3 (14,000 reviews)Verified
Amino Acid Profile Disclosed
NoClaimed
Red Flags
Some products carry Prop 65 warnings. Independent testing found PFOA (PFAS chemical) in some flavors — unresolved. Contains coconut sugar (adds sugar/calories).Verified
Value & Policy
Price
$1.50–$1.75/servingVerified
Price Per Serving
$1.50Verified
Features
Natural Flavors
Contains: Contains organic vanilla flavor and similarClaimed
Gums
Contains: Organic Acacia GumClaimed
Soy Lecithin
NoneVerified
Added Sugar
gClaimed
Sweetener
Stevia + Monk FruitVerified
Protein Source Category
Plant-BasedVerified
Protein Source
Mixed Plant BlendVerified
Made In
USAClaimed
GMP Certified
YesVerified
Manufacturing Location
USAClaimed

Background

DTC plant-based supplement brand with colorful branding and wide flavor range. Popular on Amazon with strong social media presence. CCOF organic certified. Based in California.

Full category comparison

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