Also known as: micellar casein, casein protein powder, milk protein
Latest evidence update: 2026-05-01
Strongest in Sample size (78). Held back by Recency (51).
Solid mix of RCTs with some methodological gaps.
Confirmed across many independent studies with significant findings.
Tens of thousands of participants pooled across studies.
Mostly aligned, with some divergence.
Evidence base skews older; field may have moved on.
Effect-size tagged on 174 of 203 claims for this supplement. Our research updates daily; remaining claims are pending re-processing.
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Recommended: 30-40g, 30 minutes before sleep, on training days
ProtocolEngine provides general health information based on published research. This is not medical advice. Consult a healthcare professional before starting any supplement or health protocol.