what is oestrogen?
oestrogen is the collective name for a group of closely related hormones, the best known being oestradiol. it is produced mainly by the ovaries, with smaller amounts made by the adrenal glands and by fat tissue. oestrogen plays a central role in reproductive health, but its influence reaches far beyond the reproductive system, touching bones, skin, blood vessels and even mood.
what does oestrogen do?
across the menstrual cycle, oestrogen helps thicken the lining of the uterus in preparation for a possible pregnancy, and it works alongside other hormones to help trigger ovulation. beyond reproduction, oestrogen is involved in:
- maintaining bone density
- supporting skin and connective tissue
- influencing cholesterol levels and blood vessel flexibility
- contributing to mood regulation and cognitive function
how oestrogen changes across the cycle and through life
oestrogen levels rise and fall in a fairly predictable pattern across the menstrual cycle, generally building through the first half and peaking around ovulation before falling back. levels are typically higher during the reproductive years. as the body moves through perimenopause and into menopause, oestrogen production from the ovaries gradually declines, which is linked to many of the physical and emotional changes associated with that transition.
what influences oestrogen levels?
oestrogen production is shaped by a combination of age, stage of the menstrual cycle, body composition and general health. factors such as significant changes in body weight, certain medical conditions, some medications and life stage (including pregnancy, breastfeeding, perimenopause and menopause) can all affect how much oestrogen the body produces, or how efficiently it is processed and cleared.
the bigger picture: gut and liver health
once oestrogen has done its job, it is broken down by the liver and eventually removed from the body, partly with the help of a healthy gut. a generally varied, fibre rich diet supports this normal process of processing and elimination, though it is not accurate to say any single food "balances" oestrogen. hormone regulation is a complex, whole body process.
why understanding oestrogen matters
both unusually high and unusually low oestrogen levels can be associated with a range of symptoms, from changes in the menstrual cycle to effects on mood, skin and bone health. because oestrogen interacts with so many body systems, symptoms alone rarely tell the full story, and proper testing is needed to build an accurate picture of an individual's hormone levels.
if you have concerns about your oestrogen levels or are experiencing symptoms that worry you, it's always worth speaking with a doctor or another qualified healthcare professional, who can arrange appropriate testing and offer guidance tailored to you.