Creatine Builds Muscle in Middle-Aged Adults Even Without Exercise, Texas A&M Study Shows
A study from Texas A&M University found that middle-aged adults who took 10 grams of creatine daily for 12 weeks gained about 2.4 pounds of lean tissue and improved their strength, even without a structured exercise program. When combined with exercise and a calorie-reduced diet, creatine produced even greater gains and more fat loss than diet and exercise alone. Researchers said the findings make creatine a practical tool for addressing age-related muscle loss.
A study from the Exercise and Sport Nutrition Lab at Texas A&M University found that middle-aged adults who took 10 grams of creatine monohydrate daily for 12 weeks gained approximately 2.4 pounds of lean tissue and improved their bench and leg press strength, even without a structured exercise program.
The research, published in the Journal of the International Society of Sports Nutrition, was led by Dr. Richard Kreider and examined 64 adults between the ages of 45 and 65. Participants were divided into groups that received creatine or a placebo, with some also participating in a structured resistance and aerobic exercise program combined with a calorie-reduced diet.
Participants who took creatine without any exercise program still gained lean tissue and showed strength improvements over the 12-week period. Those who combined creatine with exercise and a calorie-reduced diet achieved even greater gains in strength, lean tissue mass, and time to exhaustion.
The study also found that the combination of creatine, exercise, and a calorie-reduced diet resulted in a greater reduction in body fat percentage than the same exercise and diet program using a placebo. Researchers said this is the first study to demonstrate this specific benefit.
Creatine works by replenishing cellular energy and promoting muscle protein synthesis. It also aids in intracellular hydration, which may facilitate muscle growth.
Exploratory results suggested potential improvements in cognitive function, blood lipids, and markers of glucose management among the creatine-supplemented groups, though researchers emphasized these findings require further confirmation.
Dr. Kreider noted that obtaining 10 grams of creatine through whole foods alone would require consuming five to 10 pounds of meat or fish daily, making supplementation a more practical strategy. A 2025 analysis of 685 clinical trials found no significant differences in adverse effects between creatine and placebo groups, reinforcing its established safety profile.
