Creatine Research Has a Male Bias. New Findings Suggest Women Could Gain More

May 26, 2026 - 03:43

For decades, creatine supplementation has been studied almost exclusively in men. The foundational data on muscle gain, strength, and recovery came from male athletes and young male subjects. But a growing body of research is flipping that narrative. Emerging science suggests women, particularly those in perimenopause, may actually benefit more from creatine than men do.

The shift in focus is overdue. Women experience unique physiological changes around midlife that creatine may help address. Perimenopause brings a sharp decline in estrogen, which affects muscle mass, bone density, and cognitive function. Creatine, a compound naturally stored in muscles and used for energy production, appears to support all three areas. Studies now indicate that women who supplement with creatine during this transition can preserve lean muscle, improve bone mineral density, and even protect against age-related cognitive decline.

The reason lies in how women metabolize creatine differently. Women typically have lower baseline stores than men, partly due to smaller muscle mass and hormonal fluctuations. During perimenopause, the body's natural creatine production may drop further, making supplementation more impactful. Early trials show that women taking creatine alongside resistance training gain strength at rates comparable to men, despite starting from a lower baseline.

Researchers caution that more large-scale studies are needed, especially ones that track women through menopause. But the early evidence is clear: the old assumption that creatine is a male supplement is wrong. For women facing the highest stakes across muscle, bone, and brain health, creatine may be a simple, low-cost tool that has been overlooked for too long.