The Claim

In healthy young adults undergoing resistance training, daily myofibrillar protein synthesis rates are approximately 12% higher in exercised muscle compared to rested muscle, irrespective of whether protein is derived from animal or mycoprotein-rich plant sources.

Source: Vegan and Omnivorous High Protein Diets Support Comparable Daily Myofibrillar Protein Synthesis Rates and Skeletal Muscle Hypertrophy in Young Adults

What the research says

Supports is higher

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

Supports
68score
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

In healthy young adults who do resistance training, muscle protein synthesis is 12% higher in the muscles that were exercised compared to those that were at rest, regardless of whether the protein came from animal sources or plant-based mycoprotein.

See the scientific wording

In healthy young adults undergoing resistance training, daily myofibrillar protein synthesis rates increase by approximately 12% in exercised muscle compared to rested muscle, regardless of whether protein is derived from animal or mycoprotein-rich plant sources, indicating that resistance exercise is a stronger driver of muscle protein turnover than protein source.

Why this might work

When muscles are worked during resistance training, they become more responsive to amino acids from protein. This triggers a molecular switch called mTORC1 that turns on the protein-making machinery inside muscle cells. As a result, the muscle builds new contractile proteins at a faster rate, and this increase happens whether the protein comes from meat or plants, as long as the amino acid supply is sufficient.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Vegan and Omnivorous High Protein Diets Support Comparable Daily Myofibrillar Protein Synthesis Rates and Skeletal Muscle Hypertrophy in Young Adults

    When young adults lift weights, their muscles make new proteins about 12% faster in the worked muscles than in the resting ones — and it doesn’t matter if they get their protein from meat or plant-based mycoprotein; the result is the same.

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

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