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Progesterone is made primarily by the corpus luteum (the follicle transformed after ovulation), and is a precursor to most sex hormones. Progesterone comes into action in the middle of the normal menstruating woman's cycle.
Stimulated by the release of LH (luteinizing hormone) in the form of pulses by the pituitary gland, progesterone is absolutely crucial to the survival of the ovum once fertilized. When pregnancy occurs, progesterone production increases rapidly and is taken over by the placenta. If the woman does not get pregnant, the corpus luteum shrinks, progesterone production falters and menstruation arrives.
Progesterone is the precursor, or parent, of estrogen in the ovaries. Adrenal glands and testes also manufacture it. Progesterone is the precursor of testosterone, all androgens, and other adrenal hormones, making it extremely important for reasons far beyond the sex hormone role.
Progesterone's function on the estrogen-progesterone team are to:
- Prepare the endometrium for implantation of the fertilized ovum
- Insure survival of the fetus in the uterus
- Prevent water retention
- Help use fat for energy at the cellular level
- Serve as a natural anti-depressant
- Create a calming effect on the body
- Help eliminate sleep disorders
- Help keep insulin release in check and maintain even blood sugar levels
- Prevent overgrowth of the endometrium
- Prevent breast tissue overgrowth
- Maintain sex drive
- Maintain normal blood clotting parameters
- Protect against fibrocystic breasts
Progesterone's negatives are few and easily balanced by estrogen:
- a sedating effect
- increased spotting and changes in bleeding patterns
- bloating
- gastrointestinal discomfort
- acne
- hyperpigmentation of facial skin when exposed to sunlight
Adapted from The Hormone Solution by Erika Schwartz, M.D. Buy the complete book for $13.99 including postage.
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Ebook: The Hormone Friendly Diet
