If older guys around 72 drink a protein shake with 40 grams of casein before bed, it helps their muscles repair and grow overnight better than not having it.

Pro

Against

Evidence from Studies

Supporting (1)

Community contributions welcome

Protein Ingestion before Sleep Increases Overnight Muscle Protein Synthesis Rates in Healthy Older Men: A Randomized Controlled Trial.

Randomized Controlled Trial

Human

2017 Dec

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Protein Ingestion before Sleep Increases Overnight Muscle Protein Synthesis Rates in Healthy Older Men: A Randomized Controlled Trial.

Score: 60

DOI: 10.3945/jn.117.254532

Similar Assertions

If young guys lift weights and then drink a protein shake with 30 grams of casein before bed, that protein actually gets used to repair and build their muscles while they sleep.

93%

If young guys lift weights and then drink a protein shake with 30 grams of casein before bed, that protein helps fix their muscles while they sleep.

92%

If healthy guys drink a protein shake with 20-40 grams of casein right before bed, their bodies keep building muscle overnight — even if they worked out earlier in the day.

91%

If young, healthy guys eat 30 grams of casein protein — with or without an extra 2 grams of leucine — before bed after working out, it doesn’t actually help their muscles grow more overnight.

91%

Drinking a protein shake with 20-40 grams of casein right before bed might help your muscles repair and grow overnight — even if you worked out earlier in the day.

90%