A recent study published in the Journal of the International Society of Sports Nutrition highlights the potential benefits of daily creatine supplementation for middle-aged and older adults. Conducted by Texas A&M University’s Exercise & Sport Nutrition Lab, the research involved 64 participants aged 45 to 65.
These participants were divided into two groups: those who underwent exercise and diet interventions, and those who did not. Each participant was randomly assigned to receive either 10 grams of creatine monohydrate daily, divided into two 5-gram doses, or a placebo.
Role of Creatine
Creatine is a naturally occurring compound instrumental in helping cells generate adenosine triphosphate (ATP), the primary energy source for cellular activities. According to the Cleveland Clinic, both muscle and brain tissues utilize ATP.
Creatine monohydrate, available as a dietary supplement, aids muscles in producing quick energy during activities like strength training. The study found that a daily intake of 10 grams of this supplement increased lean muscle mass and strength in adults aged 45 to 65.
Addressing Age-Related Muscle Loss
As adults age, they naturally experience a loss of muscle mass and strength, a condition known as sarcopenia. While dieting may accelerate this process, the study revealed creatine monohydrate counteracts these effects.
The addition of creatine to an exercise and diet regimen led to notable benefits, including reduced body fat percentage and preserved lean body mass.
The study showed improvements in both upper and lower body strength compared to those only taking a placebo.
Even without exercise, participants experienced increased lean tissue mass and improved muscular strength and endurance with consistent creatine use.
Expert Opinions
New York-based fitness coach Jacob Zemer, who was not involved in the study, emphasized that the gain in lean muscle mass without exercise is significant, especially as people age. He suggested that incorporating creatine supplementation could be beneficial for many.
The study suggests creatine may contribute to actual muscle tissue development that enhances strength.
The research also showed cognitive benefits from taking a daily 10-gram dose of creatine, linking it to improvements in memory and cognitive processing.
Importance of Regular Exercise
Experts caution that while creatine supplementation offers benefits, it should not substitute regular exercise. Zemer pointed out that the advantages of exercise exceed those of creatine alone. When combined, exercise and creatine are mutually beneficial.
Without an exercise regimen, participants still observed gains in strength, lean tissue mass, and glycemic control markers.
Study Limitations and Recommendations
The study authors acknowledged limitations, such as prior participant self-selection into exercise groups and the short 12-week timeframe. These factors leave long-term effects unexamined, particularly for individuals with metabolic or neurological conditions.
Zemer advised consulting with a healthcare provider to determine suitability for creatine supplementation. He suggested choosing a reputable brand, maintaining hydration, and ensuring consistent intake.
The NIH Office of Dietary Supplements notes creatine is generally safe for healthy adults but recommends consulting a healthcare provider, especially for individuals with kidney disease or chronic health conditions.
Creatine dosages typically start at 3 grams for women and 5 grams for men, though the study utilized higher amounts.