What happens to your body after drinking different types of protein?
Aminoacidemia following ingestion of native whey protein, micellar casein, and a whey-casein blend in young men.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Young men drank three different protein shakes: one with whey, one with casein, and one with a mix. Scientists watched how their bodies reacted over 6 hours by checking their blood.
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
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Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Young men drank three different protein shakes: one with whey, one with casein, and one with a mix. Scientists watched how their bodies reacted over 6 hours by checking their blood.
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 533 / 44
Evidence Score
A snapshot of a population at a single point in time. Can identify correlations and prevalence, but cannot determine the direction of cause and effect.
Publication
Authors
Traylor DA, Gorissen SHM, Hopper H, Prior T, McGlory C, Phillips SM
Related Content
Claims (4)
Whey protein gives you a quick spike in amino acids in your blood, while casein keeps levels up longer — but overall, they give your body about the same amount of fuel, and neither one boosts muscle or energy-cell growth more during sleep.
If a young guy drinks a shake with 25 grams of whey protein, his body absorbs more essential amino acids over 6 hours compared to drinking the same amount of casein protein.
If a young guy drinks a protein shake with a mix of whey and casein, his body absorbs the important amino acids about as well as with pure whey—and better than with pure casein—over the next 6 hours.
If young guys drink a protein shake with micellar casein, their bodies show lower levels of key amino acids after eating compared to when they drink whey or a mix of whey and casein — based on blood tests over 6 hours.