Tongkat Ali (Eurycoma Longifolia) for Muscle Strength And Growth

Research suggests that Tongkat Ali may support muscle strength and androgenic activity across a range of study types, including animal experiments, a small pilot study in older adults, and a randomized, double-blind, placebo-controlled trial in aging men with low testosterone. Studies indicate that various extracts of the plant promoted muscle tissue growth in rodent models, while human studies reported improvements in grip strength and muscle strength alongside increases in testosterone levels. The randomized trial, which is the most methodologically rigorous of the three, found gains in muscle strength among men taking a standardized extract over 12 weeks, lending some credibility to the earlier findings. However, the human evidence remains limited in scope — one study was a small pilot with no control group, and the controlled trial focused specifically on older men with clinically low testosterone — so how well these findings generalize to healthy or younger populations is not yet clear.