Creatine Is Not a Shortcut: What a 54-Person Training Trial Found

Published September 18, 2026

Creatine is one of the most studied sports supplements, but no supplement replaces a progressive program. A 2025 randomized trial of 54 relatively healthy adults found that taking five grams of creatine daily did not produce greater lean-body-mass gains than resistance training alone over 12 weeks.

Read the original study

How the trial worked

Participants were ages 18–50 and had been completing less than 150 minutes of moderate physical activity per week. They were assigned either to creatine supplementation or to a no-supplement control group. Both groups then completed a supervised resistance-training program three times per week for 12 weeks.

The creatine group took five grams daily and began one week before training. During that “wash-in” week, the group gained about half a kilogram more lean body mass on average, particularly among women. The researchers suggested that water retention could help explain the early change, but body water was not measured.

Across the training period, both groups gained about two kilograms of lean body mass on average, with no significant difference between them. Body composition was measured with DXA, and short food logs did not show meaningful dietary differences between groups.

What the finding means—and what it does not

This study challenges the idea that five grams a day automatically adds extra muscle during a new strength program. It does not prove that creatine is useless. Other studies, populations, doses, training histories and outcomes may produce different results. This trial focused on lean body mass in previously undertrained adults; it was not a study of BJJ athletes, strength performance, self-defense ability or injury prevention.

The sample was modest, the intervention lasted 12 weeks, and there was no placebo. The researchers also did not measure body water, menstrual-cycle effects or individual absorption. Those limits matter when interpreting both the early weight change and the absence of a group difference later.

Build the routine before debating the supplement

For DefenseFit, the practical priority is a repeatable training and food routine: controlled strength work, enough rest to preserve movement quality, regular meals and recovery that fits around hard rolling. Supplements cannot compensate for inconsistent attendance, skipped meals or circuits that turn every station into fatigue.

Anyone considering a supplement should evaluate the actual product, potential interactions and personal medical context with an appropriate clinician or registered dietitian. This article is general education, not an individual recommendation or dosing plan. Competitive athletes should also use products with credible third-party testing because supplement labels and contents can vary.

How this connects to self-defense

Strength and lean mass may contribute to physical preparation, but they do not establish fighting performance or guarantee safety. Sustainable training supports the ability to move, maintain balance and create an opportunity to escape. The larger self-defense lesson is to invest in reliable habits before optional add-ons—and never mistake a scale or scan result for situational judgment.

Explore the DefenseFit blog, including Consistency Before Complexity and Build the Food Routine First.

Sources / Studies

• “The Effect of Creatine Supplementation on Lean Body Mass with and Without Resistance Training” — Nutrients, published March 12, 2025.
• “Sports supplement creatine makes no difference to muscle gains, trial finds” — UNSW Newsroom, published March 19, 2025.