ESTROGEN METHYLATION, DETOXIFICATION & METABOLISM   Where Do Estrogens Come From?   Estrogen is a hormone which is made from cholesterol.  Typically, estrogen promotes positive effects, supporting tissue growth and female development.  This very important hormone has a limited half-life in the metabolism and after completion of its vital function, estrogen must be removed.    The body has a specialized detoxification system for the removal of expired metabolites which includes Phase I and II detoxification reactions.    The methylation of estrogen changes it to an excretable product which is no longer active as a hormone.  This crucial methylation step is...