What happens if you eat protein before bed?
Pre-Sleep Casein Supplementation, Metabolism, and Appetite: A Systematic Review
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study looks at what happens when people eat a protein shake before going to sleep, especially focusing on hunger, burning calories, and fat.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 520 / 100
Evidence Score
The highest quality evidence. These studies systematically search, appraise, and synthesize results from multiple individual studies, providing the most reliable summary of current knowledge.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
This study looks at what happens when people eat a protein shake before going to sleep, especially focusing on hunger, burning calories, and fat.
No biological mechanisms were identified in this study. This may be an epidemiological, observational, or survey-based study that reports associations rather than proposing causal biological pathways.
Systematic Reviews & Meta-Analyses
Max 100Randomized Controlled Trials
Max 90Cohort Studies
Max 72Case-Control Studies
Max 58Cross-Sectional Studies
Max 44Case Reports & Case Series
Max 30Expert Opinion & Narrative Reviews
Max 520 / 100
Evidence Score
The highest quality evidence. These studies systematically search, appraise, and synthesize results from multiple individual studies, providing the most reliable summary of current knowledge.
Publication
Related Content
Claims (6)
Drinking a protein shake with casein before bed helps your muscles grow and get stronger while you sleep, especially if you're working out.
If you eat a scoop or two of casein protein before bed, it probably won’t change how hungry or full you feel the next day — at least for healthy young or active older people.
If you're a young adult who's overweight or obese, having a casein protein shake before bed doesn't seem to change your metabolism or fat burning in any clear way — it doesn't help or hurt much, based on the studies so far.
Eating a bedtime protein shake with casein doesn’t seem to change how many calories your body burns at rest if you're a healthy older adult — at least according to one small study.
If healthy young adults drink a casein protein shake before bed, they might burn slightly less fat overnight than if they had whey protein—but about the same amount as if they had nothing at all.