removal of both testicles is known as a bilateral orchiectomy, or castration, because the person is no longer able to reproduce. Emasculation is another word that is sometimes used for castration of a male. Castration in women is the surgical removal of both ovaries (bilateral oophorectomy ).
On most lists of products containing estrogen, animal products like milk and beef are at the very bottom. Milk, for example, is said to provide 1.2 micrograms of estrogen per 100 grams.
The three major naturally occurring estrogens in women are estrone (E1), estradiol (E2), and estriol (E3). Estradiol is the predominant estrogen during reproductive years both in terms of absolute serum levels as well as in terms of estrogenic activity.