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People Gained Lean Mass on Creatine Even Without Hitting the Gym. But There’s a Catch
ZME Science • • health
Key Points:
- A 12-week study found that sedentary adults aged 45-65 who took 10 grams of creatine daily gained about 1.1 kilograms of lean tissue and improved strength and muscular endurance without exercising.
- The increase in lean tissue may largely reflect water retention in muscles rather than new muscle protein, as creatine draws water into muscle cells and DXA scans cannot distinguish between the two.
- Participants who combined creatine with exercise experienced larger gains, confirming that creatine supplements enhance but do not replace the benefits of physical training.
- Some cognitive improvements were observed in memory and processing speed tests, but the evidence remains mixed and inconclusive regarding creatine’s effects on overall cognitive function.
- Limitations include a small no-exercise creatine group, participant self-selection for exercise, a higher-than-normal creatine dose, and potential financial conflicts of interest involving the study’s lead researcher.
