Klean Athlete Klean Isolate
Professional and Olympic athletes who need NSF-certified protein with pharmaceutical-grade purity
Levels Grass-Fed 100% Whey Protein
Budget-conscious consumers who want affordable grass-fed whey without fillers
Score Comparison
Pricing & Features
Making Your Decision
When to Choose Klean Athlete Klean Isolate
Professional and Olympic athletes who need NSF-certified protein with pharmaceutical-grade purity
Klean Athlete is purpose-built for competitive athletes who cannot risk contamination. NSF Certified for Sport plus pharmaceutical-grade manufacturing standards make it one of the safest protein powders available. The unflavored single-ingredient option is ideal for purists.
Strengths
- NSF Certified for Sport — trusted by Olympic and professional athletes
- Single-ingredient unflavored option available for maximum purity
- Made by supplement industry leader (Atrium Innovations) with pharmaceutical-grade standards
Limitations
- Flavored options (Vanilla, Chocolate, Strawberry) are less sweet than mainstream competitors
- Only 20 servings per pouch at $2.20/serving is expensive
- Limited retail availability — primarily sold through specialty channels
When to Choose Levels Grass-Fed 100% Whey Protein
Budget-conscious consumers who want affordable grass-fed whey without fillers
Levels offers solid grass-fed whey at competitive prices with clean ingredients. The lack of major certifications keeps it from premium territory, but third-party lab testing and honest ingredient lists make it a reliable budget option for those who want grass-fed quality without the premium price.
Strengths
- Grass-fed, hormone-free whey with no artificial ingredients or fillers
- Good value with multiple size options from 1lb to 5lb
- Third-party tested by independent labs with results available on request
Limitations
- No major third-party certification (no NSF, Informed Sport, or Labdoor rating)
- Smaller brand with less established quality track record
- Uses whey concentrate rather than isolate — lower protein percentage
