Fenugreek is an herb that is similar to clover, it can be found in Asia, Europe and the Mediterrean region. The seeds can be used in medicine and cooking. Fenugreek contains compounds called furostanolic saponins, which are believed to increase testosterone production.

Several studies have shown that taking fenugreek supplements can improve symptoms associated with low testosterone by restoring the body's ability to produce testosterone by reducing estrogen production and regenerating liver cells.

A 12-week study in 50 men demonstrated that those who took a daily 500-mg fenugreek supplement that contained concentrated amounts of protodioscin experienced significant improvements in their testosterone levels.