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There are also important limitations. The study was relatively small, lasted only 12 weeks and involved healthy adults aged 45–65, so the findings cannot automatically be applied to younger people, people with medical conditions or longer-term creatine use. For now, the study adds an intriguing piece to the growing evidence around creatine. It suggests that the supplement’s effects may extend beyond helping people perform better during workouts, but exercise, adequate nutrition and resistance training remain central to building and maintaining muscle.