Creatine “FAILS” in New Study - Don’t Be Misled!

The speaker cites multiple meta-analyses: one in adults under 50 showing accelerated strength gains with creatine vs placebo, and another in older adults demonstrating increased chest press and leg press one-rep max. A report from the International Society of Sports Nutrition summarized that ~70% of hundreds of peer-reviewed creatine studies find significant improvements in exercise capacity. He also explains that muscle strength and muscle size are not perfectly linked — bodybuilders often have bigger muscles, but weightlifters may be stronger for a given cross-sectional area. This underscores why a study that only measures lean body mass (which includes water) cannot refute the well-established performance data. The study that prompted the video was small (60 people, 12 weeks) and underpowered to detect small lean mass differences, and it never measured strength.

The new RCT randomized 60 participants into creatine (5 g/day) and control groups. For the first week, neither group exercised; the creatine group alone gained about 0.5 kg of lean body mass, while the control group’s lean mass didn’t change. This confirmed water uptake. When exercise started in week 2 and continued for 12 weeks, both groups added roughly 2 kg of lean body mass from the week-1 measurement to the end, with no statistically significant difference between groups. The authors concluded creatine’s entire lean-mass advantage is front-loaded water weight, not ongoing muscle gains. The speaker points out the study’s small sample and short duration reduce power to detect small true differences, and the numerical trend still favored creatine. Most importantly, the trial never measured strength or performance — the endpoints the speaker values most.

The speaker unpacks the numbers: the creatine group’s total change from baseline to study end was still larger because of the week-1 water gain, but the 12-week exercise phase showed no incremental lean-mass benefit. The study’s modest size (n=60) and 12-week window mean a small true muscle effect could easily be missed. The speaker emphasizes that strength and muscle performance were never assessed, and muscle size and strength are not perfectly correlated — early strength gains often stem from neural adaptations, not hypertrophy. Therefore, even if lean mass didn’t rise, participants on creatine could have gotten significantly stronger.

The speaker anchors his decision in the mechanism of creatine (ATP resynthesis), which directly boosts short-burst, high-intensity exercise output. Meta-analyses in young and older adults show consistent strength gains (chest press, leg press 1RM). The International Society of Sports Nutrition notes ~70% of peer-reviewed studies find significant performance improvements. Because the new trial did not measure strength or power, it cannot challenge this evidence. The speaker also points out that strength gains can precede measurable muscle growth (neural adaptations), so a trial that only scanned lean body mass could easily miss meaningful training benefits.