The Claim

In healthy, trained young adults undergoing 12 weeks of resistance training, creatine supplementation (daily or training-day-only) is not associated with significant changes in body fat percentage or total skeletal muscle mass.

Source: Creatine monohydrate ingested daily compared to only on training days on body composition, muscle thickness, and strength after 12 weeks of resistance training: preliminary results

What the research says

Supports is higher

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

Supports
54score
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.

Correlation
1 study reviewed
In plain English

Among healthy, trained young adults doing 12 weeks of strength training, taking creatine daily or only on training days does not change body fat percentage or total muscle mass.

See the scientific wording

In healthy, trained young adults undergoing 12 weeks of resistance training, creatine supplementation (daily or training-day-only) was not associated with significant changes in body fat percentage or total skeletal muscle mass.

Why this might work

Creatine keeps muscle energy levels stable during workouts, so the body doesn't need to build more muscle or burn more fat to compensate. Muscle cells already have enough creatine, so extra intake doesn't trigger growth or fat loss.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: Creatine monohydrate ingested daily compared to only on training days on body composition, muscle thickness, and strength after 12 weeks of resistance training: preliminary results

    People who took creatine while weight training for 12 weeks didn’t lose or gain body fat, and their total muscle mass didn’t go up or down — even though some of their individual muscles got a little thicker.

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.