The Claim

In resistance-trained men, a greater acute increase in plasma amino acid concentrations after consuming protein post-exercise does not result in greater long-term gains in muscle mass or strength over the course of a 9-week resistance training program.

Source: Effects of Postexercise Protein Intake on Muscle Mass and Strength During Resistance Training: Is There an Optimal Ratio Between Fast and Slow Proteins?

What the research says

Supports is higher

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

Supports
38score
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.

Cause and effect
1 study reviewed
In plain English

If you're a guy who lifts weights, getting a bigger spike in amino acids after your workout doesn't actually help you gain more muscle or get stronger over time.

See the scientific wording

In resistance-trained men, a greater acute rise in plasma amino acids following post-exercise protein intake does not lead to greater long-term muscle mass or strength gains during a 9-week resistance training program.

What the research says

1 study

  1. Study: Effects of Postexercise Protein Intake on Muscle Mass and Strength During Resistance Training: Is There an Optimal Ratio Between Fast and Slow Proteins?

    The study found that even though some protein drinks caused a bigger spike in amino acids in the blood, all the men gained similar muscle and strength over time, no matter which drink they had.

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.