Understanding Oestrogen: Balance, Health, and Hormonal Harmony

The Role of Oestrogen in the Female Body

Each month after menstruation, the body begins rebuilding oestrogen levels—primarily in the form of oestradiol (E2), the most active type of oestrogen. Some of this is converted into a weaker form known as oestrone (E1). These hormones circulate in the bloodstream, stimulating growth and activity in oestrogen-sensitive tissues. It peaks just before ovulation, then declines before menstruation begins.

Oestrogen is produced mainly in the ovaries, with additional contributions from the adrenal glands and fat (adipose) tissue. After menopause, the body relies more heavily on adrenal-derived androgens, which are converted into oestrogen in fat tissue through a process called aromatisation.

Oestrogen and progesterone work in a delicate relationship—often opposing yet supporting each other. Progesterone helps balance the stimulating effects of oestrogen, preventing excess.

Sources of Oestrogen

  • Ovaries, adrenal glands, and adipose tissue
  • Enterohepatic circulation (conversion of androgens into oestrone)
  • Environmental sources (xenoestrogens found in plastics, pesticides, and personal care products)

Key Functions

  • Development of secondary sexual characteristics
  • Regulation of cholesterol levels
  • Growth and maintenance of reproductive tissues
  • Bone and cartilage strength
  • Cervical mucus production
  • Skin hydration and elasticity
  • Brain function, mood, and memory
  • Fluid balance and electrolyte regulation
  • Cardiovascular protection (vasodilation and anti-atherosclerotic effects)

Oestrogen Imbalance: Signs and Symptoms

Many health concerns arise from hormonal imbalance—most commonly oestrogen dominance, where oestrogen levels are high relative to progesterone.

Common symptoms include:

  • Breast tenderness or fibrocystic breasts
  • Weight gain or increased body fat
  • Mood swings and migraines
  • Low libido
  • PMS, PMDD, endometriosis, and fibroids
  • Thyroid imbalance
  • Fluid retention and bloating
  • Hair thinning or unwanted facial hair
  • Increased cancer risk (breast, ovarian, endometrial)
  • Poor liver and gallbladder function

Low vs High Oestrogen

Low Oestrogen may present as:

  • Long or irregular cycles
  • Light or missed periods (amenorrhea)
  • Reduced ovulation
  • Vaginal dryness
  • Bone loss over time

High Oestrogen may present as:

The Three Types of Oestrogen

Oestradiol (E2):
The most potent and dominant form during reproductive years. It supports reproductive health, brain function, libido, and bone density.

Oestrone (E1):
Weaker than E2, more prominent after menopause.

Oestriol (E3):
The weakest form, often associated with pregnancy and used therapeutically for menopausal symptoms like vaginal dryness and hot flashes.

Oestrogen metabolites are not simply waste products—they have unique biological effects. Some promote growth, while others may protect against disease. Maintaining a healthy balance of these metabolites is key to long-term health.

Oestrogen and Menopause

As menopause approaches, oestrogen levels decline significantly. This can lead to symptoms such as:

  • Hot flashes
  • Memory changes
  • Vaginal dryness
  • Bone density loss

The body compensates by converting adrenal hormones into oestrogen via fat tissue. However, chronic stress, poor nutrition, and adrenal fatigue can impair this process, intensifying menopausal symptoms.

Supporting Healthy Hormonal Balance

Both traditional and modern naturopathic medicine emphasise balance rather than suppression.

Traditional wisdom highlights:

  • Supporting liver health to aid hormone metabolism
  • Using bitter herbs to stimulate digestion and detoxification
  • Encouraging seasonal, whole-food diets

Modern naturopathic strategies include:

  • Increasing fibre intake to support oestrogen elimination
  • Consuming cruciferous vegetables (like broccoli and kale) to promote healthy oestrogen metabolism
  • Supporting gut health to optimise enterohepatic circulation
  • Reducing exposure to xenoestrogens (plastics, chemicals)
  • Managing stress to protect adrenal function
  • Ensuring adequate nutrients such as zinc, magnesium, and B vitamins
  • Herbal allies traditionally used include chaste tree (Vitex), black cohosh, and dong quai—each selected based on individual presentation.

Oestrogen is neither “good” nor “bad”—it is essential. The key lies in balance, metabolism, and how the body processes and responds to it over time. By supporting the body through nutrition, lifestyle, and naturopathic care, hormonal harmony is achievable.

“Health is not found in extremes, but in balance—where the body remembers how to regulate itself.”