Klean Athlete Klean Isolate
Professional and Olympic athletes who need NSF-certified protein with pharmaceutical-grade purity
Vega Sport Premium Protein
Plant-based athletes who need NSF-certified vegan protein with recovery ingredients
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 Vega Sport Premium Protein
Plant-based athletes who need NSF-certified vegan protein with recovery ingredients
Vega Sport is the premier NSF-certified plant-based protein for athletes. The multi-source blend provides a complete amino acid profile, and added recovery ingredients like tart cherry give it functional edge. Plant-based heavy metal concerns and premium pricing are the trade-offs.
Strengths
- NSF Certified for Sport with 30g plant-based protein per serving
- Multi-source plant blend (pea, pumpkin seed, sunflower, alfalfa) for complete amino profile
- Added tart cherry and turmeric for post-workout recovery support
Limitations
- Some Consumer Reports concern over heavy metals in plant-based proteins generally
- Strong stevia taste can be polarizing for some palates
- Premium price at $3.00/serving for 20 servings per container
