Casein Protein
Hasn’t appeared in a scanned product yet.
Talk to your doctor or pharmacist.
Roll Call does not check drug interactions or assess personal safety.
A slow-digesting milk protein isolated from dairy, distinct from the faster-digesting whey protein that is also found in milk.
Why it’s used
Taken as a dietary protein source, often before sleep, to support muscle protein synthesis, particularly alongside resistance exercise.
What the evidence is for
supporting muscle protein synthesis as a dietary protein source, particularly with resistance exercise.
What the evidence says
Research, including work summarized in a position stand from the International Society of Sports Nutrition, supports casein's slow amino acid release and its role in sustaining muscle protein synthesis overnight, especially when paired with resistance training. Comparisons between casein and other protein sources on long-term body composition outcomes are less consistent.
Dose studied
20–40 g — pre-sleep casein protein dosing used in resistance-training studies.
Context
Studies on pre-sleep casein protein in resistance-trained individuals have generally used doses in the range of 20 to 40 grams.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.