Check Supplement
Check My StackMy Health
All Products
K
Klean Athlete
SPECIMEN #KLEAN-AT
Verified
ProteinKlean Athlete

Klean Isolate Whey Protein

NSF Certified for Sport means every batch tested for 270+ banned substances. If you're a tested athlete, a contaminated protein powder can end your career. 20g grass-fed whey isolate is modest but guaranteed clean.

7.5/10
VERY GOOD

NSF Certified for Sport whey isolate from grass-fed cows. Clean label, minimal ingredients. 20g protein is modest. Built for tested athletes who can't risk contamination.

2 ingredientsPowder20 servings
We'd recommend this
Evidence
9.0
Dosing
6.0
Synergy
4.0
Check My Stack
Whenpost-workout

Protein within 2 hours post-training optimizes recovery.

Foodwith or without food

Mix with water or milk. Post-workout or between meals.

SafetyAll clear

Clean for all tested sports organizations.

ResearchStrong evidence

Whey protein isolate is the most studied protein supplement.

What We Like

  • NSF Certified for Sport (banned substance tested).
  • Grass-fed whey protein isolate.
  • Minimal ingredient list (just protein).
  • INFORMED-SPORT certified.

Watch Out For

  • Only 20g protein per serving (most athletes want 25-30g).
  • Only 20 servings per container.
  • Premium price for tested-clean protein.
  • Unflavored can taste bland.

Ingredient Breakdown

1 underdosed
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
Protein8.0

Whey Protein Isolate (Grass-Fed)

20 g
20 g
BCAAs

Naturally occurring

4.5 gUNDERDOSED
45%
4.5 g

of 10000mg

UNDERDOSED
45%
In our database (click to learn more) Not yet reviewed

Our Analysis

Best For

NCAA, Olympic, and professional tested athletes.CrossFit competitors.Anyone who wants guaranteed clean protein.

Skip This If

Recreational exercisers (standard whey is fine and cheaper).Dairy-intolerant (it's whey).

Time to Feel

Immediate post-workout recovery support.

Value

FAIR

How to take: No cycling needed.

Personalized Deep Analysis

See exactly how this fits your health profile. What works for you, what doesn't, and whether you're getting your money's worth.

Unlock with Pro

Taking other supplements too?

Check your full stack for interactions, redundancies, and gaps. Takes 30 seconds.

Check My Stack
0 views