Microbial catabolism of phytosterol side chains yields C-19 steroids, C-22 steroids, and 17-ketosteroids (. precursors to adrenocortical hormones and contraceptives ).     The addition and modification of functional groups is key when producing the wide variety of medications available within this chemical classification. These modifications are performed using conventional organic synthesis and/or biotransformation techniques.  
When discussing all of the documented tribulus terrestris benefits, the first one that is usually mentioned is related to libido and enhancing overall sex drive. This is the number one reason that many have turned to this plant. Nowadays it seems that it is also very popular in enhancing athletic performance and increasing muscle mass. The reason that tribulus terrestris is so great for this specifically is because it helps enhance testosterone in the body. This hormone is responsible for sex drive and for physically exertion and energy.