The Claim

In individuals with diabetes, insulin reduces skeletal muscle protein synthesis by 6.67 nmol (100 ml leg vol.)⁻¹ min⁻¹ when amino acid delivery is maintained, indicating a specific defect in insulin’s anabolic signaling in diabetic muscle.

Source: Role of insulin in the regulation of human skeletal muscle protein synthesis and breakdown: a systematic review and meta-analysis

What the research says

Supports is higher

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

Supports
44score
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.

How it works
1 study reviewed
In plain English

In people with diabetes, insulin decreases the rate of muscle protein synthesis by 6.67 nmol per 100 ml of leg volume per minute, even when amino acids are supplied normally, showing that insulin’s ability to stimulate muscle growth is impaired in diabetic muscle.

See the scientific wording

In individuals with diabetes, insulin reduces skeletal muscle protein synthesis by 6.67 nmol (100 ml leg vol.)⁻¹ min⁻¹ even when amino acid delivery is maintained, indicating a specific defect in insulin’s anabolic signaling in diabetic muscle.

Why this might work

In people with diabetes, insulin cannot properly signal muscle cells to build protein because the pathway that tells the cell to start making protein is broken. Even when amino acids are present, the signal from insulin gets blocked early, so the machinery that assembles proteins stays turned off.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Role of insulin in the regulation of human skeletal muscle protein synthesis and breakdown: a systematic review and meta-analysis

    In people with diabetes, insulin doesn't help build muscle like it should—even when they have enough amino acids—and may even make muscle building worse. This study proves that by measuring exactly how much muscle building drops in diabetics when insulin is given.

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

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