The Summary
A systematic review and meta-analysis of 14 randomized controlled trials involving 763 women evaluated whether combining exercise with protein, amino acid, or creatine supplements improves musculoskeletal health across reproductive stages. Surprisingly, adding these supplements did not significantly increase muscle mass, fat-free mass, or bone mineral density compared to exercise alone. However, the combination did lead to modest improvements in upper-body strength, specifically in bench press and handgrip strength, with creatine showing the most promise. Overall, structured exercise remains the primary driver of musculoskeletal benefits for women.
Why this is interesting
While the fitness industry heavily promotes protein powders and amino acids for women—especially during the menopausal transition—this study suggests they might not be necessary. For most women, exercise alone delivers the vast majority of muscle-building and bone-strengthening benefits. You don't need expensive products to stay strong; a consistent workout routine does the heavy lifting. However, if you are looking for an extra edge in upper-body strength, creatine may offer a slight advantage. This helps women save money and focus on what actually works: regular physical training.