Best Protein Powder for Muscle Gain
For lean-muscle gain, prioritize fast-digesting, high-leucine proteins with at least 20 g per serving. We weight protein quality and bioavailability highest.
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How we rank products
Every product receives an Overall Score (0–100) built from seven sub-scores: ingredient quality, bioavailability, dosage, clean label, certifications, user trust and value. For this page we re-weight those sub-scores for the Muscle Gain use case, then apply ingredient bonuses and hard penalties (artificial fillers, proprietary blends, poor forms) before ranking. The full methodology is fully deterministic and re-runs whenever a product is edited.
Frequently asked questions
How much protein for muscle gain?
1.6–2.2 g per kg body weight per day.