Creatine Builds Lean Muscle Without Exercise, But Training Still Helps
A 12-week Texas A&M study found sedentary adults aged 45–65 who took 10 g/day creatine gained about 1.1 kg of lean tissue and improved strength and muscular endurance even without a structured exercise program; while gains occur without training, exercise enhances results, so creatine isn’t a substitute for physical activity.