The term "estrogen dominance" is used to describe a type of hormonal balance with symptoms such as abnormal menstruation, increased PMS symptoms, insomnia and more.

Contrary to what you may think, estrogen dominance is not necessarily the result of high estrogen levels but instead describes estrogen's relationship to progesterone. It is an unofficial term and debated condition that does not have a clear definition.

Before we dive into the specifics about the theory of estrogen dominance, it's important to mention that estrogen dominance as a diagnosis is not recognized by major medical associations, including the American College of Obstetricians and Gynecologists, the American Academy of Family Physicians and the Endocrine Society.

"Estrogen dominance is based on a bit of truth and fact, and then misapplied to explain many things that it cannot explain," said Nanette Santoro, M.D., professor and E. Stewart Taylor chair of obstetrics and gynecology at the University of Colorado in