The Claim

In healthy adult men, ingestion of intact milk protein leads to greater systemic availability of dietary protein–derived phenylalanine (65% ± 13%) over a 5-hour postprandial period compared to whey protein (57% ± 10%) and casein (45% ± 11%), indicating that milk protein, containing whey and casein in a 20:80 ratio, provides superior amino acid delivery relative to either purified protein form alone.

Source: Protein Type, Protein Dose, and Age Modulate Dietary Protein Digestion and Phenylalanine Absorption Kinetics and Plasma Phenylalanine Availability in Humans

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
88score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

For healthy guys, drinking regular milk protein gives your body more usable protein building blocks over 5 hours than taking just whey or just casein alone.

See the scientific wording

In healthy adult men, milk protein ingestion results in greater systemic availability of dietary protein–derived phenylalanine (65% ± 13%) over 5 hours compared to whey protein (57% ± 10%) and casein (45% ± 11%), indicating that intact milk protein, containing both whey and casein in a 20:80 ratio, supports superior postprandial amino acid delivery than either purified protein alone.

What the research says

1 study
  1. Study: Protein Type, Protein Dose, and Age Modulate Dietary Protein Digestion and Phenylalanine Absorption Kinetics and Plasma Phenylalanine Availability in Humans

    The study shows that when people drink milk protein, more of the protein's building blocks show up in the blood than when they drink just whey or casein, which supports the idea that milk protein gives the body more usable protein after a meal.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.