Fenugreek has a long history as a breast enlarger and contains diosgenin which is used to make synthetic estrogen. It has been found to promote the growth of new breast cells and increase the size and fullness of the breasts. Of all the herbs used for breast enlargement fenugreek has the highest concentrations of the effective plant compounds. Diosgenin, a steroid sapogenin is the starting compound for over 60% of the total steroid production by the pharmaceutical industry. Other sapogenins found in fenugreek seed include yamogenin, gitogenin, tigogenin, and neotigogens.