Estrogen levels can be increased through diet, specific supplements, lifestyle changes, and hormone therapy. The right approach depends on why your estrogen is low and how much of a change you need. A premenopausal woman with levels dipping below 15 pg/mL faces a different situation than a postmenopausal woman whose levels have naturally dropped below 10 pg/mL, and the strategies that help each group vary significantly.
What Normal Estrogen Levels Look Like
Estrogen, specifically estradiol, fluctuates dramatically even in healthy individuals. In premenopausal women, levels range from 15 to 350 pg/mL depending on the phase of the menstrual cycle. Right after a period, levels can be as low as 15 pg/mL, then climb to 300+ pg/mL around ovulation before dropping again. Menstruation typically occurs when levels sit between 50 and 100 pg/mL. After menopause, estradiol generally falls below 10 pg/mL.
Men maintain levels between 10 and 40 pg/mL throughout adulthood. Because estrogen naturally swings so widely in cycling women, a single blood test isn’t always informative. Your provider may want to test at a specific point in your cycle or run multiple tests to get a clear picture.
Phytoestrogen-Rich Foods
Certain plant compounds called phytoestrogens can bind to estrogen receptors in your body and produce mild estrogen-like effects. They preferentially activate one type of estrogen receptor (ER-beta) over another, which means they mimic estrogen in some tissues while partially blocking it in others. This is why phytoestrogen-rich foods are associated with benefits like reduced hot flashes without the same risk profile as pharmaceutical estrogen.
Soy is by far the most concentrated dietary source. According to the USDA’s isoflavone database, raw mature soybeans contain roughly 155 to 179 mg of isoflavones per 100 grams, depending on origin. Soy flour ranges from 150 to 178 mg per 100 grams. Even processed soy products like soy nuts (148 mg/100g) and soy protein powder (around 110 mg/100g) deliver substantial amounts. Practical ways to get more phytoestrogens include:
- Tofu and tempeh: whole-food soy sources that work easily into meals
- Edamame: green soybeans with about 129 mg of isoflavones per 100 grams
- Soy milk: a simple daily swap for dairy
- Flaxseeds: contain a different class of phytoestrogens called lignans, best consumed ground
The estrogenic effect of these foods is far weaker than what your ovaries produce or what you’d get from hormone therapy. They’re a reasonable first step for mild symptoms, not a substitute for medical treatment when estrogen is significantly depleted.
Boron: A Lesser-Known Supplement
Boron is a trace mineral that doesn’t get much attention, but the research on its relationship with estrogen is surprisingly strong. In one study of postmenopausal women who had been eating a low-boron diet, restoring boron intake nearly doubled their estradiol levels, from an average of 21.1 pg/mL to 41.4 pg/mL. A similar increase was found in healthy men after four weeks of boron supplementation.
The mechanism appears to involve how your body breaks down estrogen rather than how it produces it. Boron inhibits certain enzymes that metabolize estradiol and vitamin D, effectively increasing the biological half-life and bioavailability of both hormones. This has been confirmed in postmenopausal women on hormone replacement therapy: boron didn’t cause them to produce more estrogen, but it slowed the rate at which their bodies cleared it. Boron is found naturally in fruits, nuts, and legumes, and is available as a supplement, though the optimal dose for hormonal effects hasn’t been standardized.
How Body Fat Affects Estrogen
Fat tissue is not just storage. It actively produces estrogen through an enzyme called aromatase, which converts testosterone and other androgens into estradiol and estrone. After menopause, when the ovaries stop producing significant estrogen, adipose tissue becomes the primary source of estrogen in the body.
This means body composition directly influences your estrogen levels. Higher body mass index is positively associated with tissue levels of estrogen. Inflammation in fat tissue, which increases with excess weight, further ramps up aromatase activity. Several inflammatory signals that are elevated in obesity are known to upregulate estrogen production in fat cells. At the same time, adiponectin (a hormone that normally suppresses aromatase) drops as body fat increases, removing another brake on estrogen production.
For someone who is underweight or has very low body fat, gaining even a modest amount of weight can raise estrogen levels. This is why athletes and people with eating disorders often lose their periods: insufficient body fat means insufficient estrogen to sustain a menstrual cycle. On the flip side, if you already carry excess weight, your estrogen levels may actually be elevated rather than low, which brings its own set of problems.
Signs You Have Too Much Estrogen
Before actively trying to raise estrogen, it’s worth understanding what estrogen excess looks like. When estrogen rises too high relative to progesterone, sometimes called estrogen dominance, the symptoms can overlap with what you might expect from low estrogen. In women, high estrogen can cause breast swelling and tenderness, heavy or irregular periods, worsening PMS, weight gain concentrated at the waist, hips, and thighs, fatigue, mood swings, depression, anxiety, and uterine fibroids. In men, it can lead to enlarged breast tissue, erectile dysfunction, decreased sex drive, and infertility.
Many of these symptoms (fatigue, low mood, low libido) could point in either direction. Testing is the only way to know whether your levels are actually low before pursuing strategies to increase them.
Hormone Therapy
When estrogen levels drop significantly, particularly during and after menopause, hormone therapy is the most direct and effective intervention. Estradiol, the form most commonly prescribed, comes in several delivery methods: skin patches, topical gels, and sprays. Gels are applied once daily, typically to the upper arm, in doses starting around 0.87 to 1.25 grams depending on the formulation. Patches provide steady delivery over days. The route of administration matters: transdermal options (patches, gels, sprays) bypass the liver and carry a lower risk of blood clots compared to oral estrogen.
For women younger than 60 or within 10 years of menopause onset, the benefit-to-risk ratio for hormone therapy is favorable for treating hot flashes and preventing bone loss. For those starting more than 10 years after menopause or over age 60, the risks of heart disease, stroke, blood clots, and dementia increase, making the calculation less straightforward. The North American Menopause Society recommends individualized treatment with periodic reevaluation.
For localized symptoms like vaginal dryness and urinary issues (collectively called genitourinary syndrome of menopause), low-dose vaginal estrogen is often recommended on its own, without the need for full systemic therapy. This delivers estrogen directly where it’s needed with minimal absorption into the bloodstream.
What to Expect From Treatment
Estrogen therapy doesn’t produce overnight results. Symptom relief from hot flashes typically begins within a few weeks, but the full scope of changes takes longer. Breast tissue changes and fat redistribution begin at three to six months and reach their maximum effect at two to three years. Decreases in muscle mass and changes in body hair can take one to three years to fully develop. People on lower doses generally experience slower or less pronounced changes.
For menopausal symptom relief specifically, most women notice meaningful improvement in hot flashes and sleep quality within the first month or two. Vaginal symptoms can take longer, sometimes several weeks to months of consistent use with topical estrogen before tissue changes become noticeable.
Lifestyle Habits That Support Estrogen
Beyond diet and supplementation, a few basic lifestyle factors influence how your body produces and maintains estrogen. Chronic caloric restriction and excessive exercise both suppress the hormonal axis that drives estrogen production. If you’re training intensely and have lost your period, reducing exercise volume and increasing caloric intake is often the most effective way to restore normal cycling.
Vitamin D works synergistically with estrogen, and boron appears to extend the active life of both hormones in the body. Ensuring adequate intake of both nutrients creates a more favorable hormonal environment. Chronic stress raises cortisol, which can interfere with the hormonal signaling that triggers ovulation and estrogen production. Sleep deprivation has a similar disruptive effect on reproductive hormones.
Alcohol, while it can acutely raise estrogen levels in the short term, disrupts overall hormonal balance with regular use and is not a useful strategy. Smoking, on the other hand, is directly anti-estrogenic: it accelerates estrogen metabolism and is associated with earlier menopause.