The Claim

In healthy young men recovering from exhaustive exercise, creatine supplementation increases muscle glycogen resynthesis within the first 24 hours, but this effect is not attributable to changes in muscle insulin sensitivity, as assessed by oral glucose tolerance tests and muscle GLUT4 mRNA expression, with no significant differences observed between creatine and placebo groups.

Source: Creatine ingestion augments dietary carbohydrate mediated muscle glycogen supercompensation during the initial 24 h of recovery following prolonged exhaustive exercise in humans

What the research says

Supports is higher

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

Supports
37score
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 young, healthy guys, creatine helps refill muscle energy after intense exercise, but it doesn’t work by making muscles more sensitive to insulin — that part hasn’t changed, according to tests and gene activity.

See the scientific wording

In healthy young men, the creatine-mediated increase in muscle glycogen resynthesis during the first 24 hours of recovery from exhaustive exercise is not explained by changes in muscle insulin sensitivity, as measured by oral glucose tolerance tests and muscle GLUT4 mRNA expression, which showed no significant differences between creatine and placebo groups.

What the research says

1 study
  1. Study: Creatine ingestion augments dietary carbohydrate mediated muscle glycogen supercompensation during the initial 24 h of recovery following prolonged exhaustive exercise in humans

    The study shows that creatine helps muscles refill their energy stores faster after exercise, and this isn’t because it made the muscles more sensitive to insulin—just like the claim says.

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.