Performance Nutrition Digest

Performance Nutrition Digest

Pre-sleep whey (not casein) improves sleep quality after training 💤

Move over casein.

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Tom Coughlin
Jul 15, 2026
∙ Paid

Presleep Whey but Not Casein Protein Ingestion Improves Sleep Quality After Resistance Exercise When Compared With an Isocaloric Control in Resistance Trained Individuals

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Study Details

This new study recruited 9 healthy participants (5 men, 5 women…

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