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Casein protein

Micellar casein · Performance

ModerateSeveral human trials, smaller or less consistent.

The slow milk protein; it digests over hours, which is why it is the classic bedtime shake.

What the evidence says

Pre-sleep casein raises overnight muscle protein synthesis in trials; total daily protein still decides the outcome.

What studies used

Labels commonly list 20-30 g protein per scoop.. Before bed, or as any meal's protein..

Reported from published studies and product labelling — a record of what was used in research, not a recommendation. What is right for you is a conversation with a clinician.

Watch out for

  • Dairy allergy or lactose issues, though most isolates are low lactose

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