Raising estrogen levels depends on why they’re low in the first place. For some people, dietary and lifestyle changes can meaningfully shift the needle. For others, particularly those in menopause or with medical conditions affecting hormone production, prescription estrogen therapy is the most reliable path. Here’s what actually works, how your body makes estrogen, and what to expect from each approach.
How Your Body Makes Estrogen
Understanding the basics of estrogen production helps explain why certain strategies work. Your body creates estrogen through an enzyme called aromatase, which converts androgens (hormones like testosterone and its precursors) into estrogen. In premenopausal women, the ovaries are the primary production site. But estrogen is also produced in fat tissue, the adrenal glands, and other tissues throughout the body, all of which rely on that same aromatase conversion process.
The most biologically active form of estrogen is estradiol. Normal blood levels fluctuate dramatically across the menstrual cycle: roughly 20 to 350 pg/mL during the first half of the cycle, spiking to 150 to 750 pg/mL around ovulation, then settling to 30 to 450 pg/mL in the second half. After menopause, levels drop significantly because the ovaries largely stop producing it, leaving only the smaller contributions from other tissues.
Foods That Contain Plant Estrogens
Phytoestrogens are plant compounds that mimic estrogen in the body, binding to the same receptors at a much weaker level. They won’t replace your body’s own estrogen, but regular consumption can have mild estrogenic effects. Soy foods dominate this category by a wide margin. According to USDA data, the richest sources of isoflavones (the most studied type of phytoestrogen) per 100 grams are:
- Soybeans (raw, mature): 155 to 179 mg of isoflavones depending on origin
- Soy flour (full-fat, raw): 178 mg
- Textured soy flour: 173 mg
- Dry roasted soybeans (soy nuts): 149 mg
- Yuba (soymilk skin): 196 mg
In practical terms, this means tofu, tempeh, edamame, soy milk, and miso are the most potent dietary sources. Other foods contain phytoestrogens in smaller amounts: flaxseeds are rich in lignans (a different class of phytoestrogen), and chickpeas, lentils, and sesame seeds contribute modest amounts. Eating these foods regularly may help with mild symptoms, but if your estrogen is significantly low, dietary changes alone are unlikely to resolve the problem.
Micronutrients That Support Estrogen Levels
Two micronutrients stand out for their connection to estrogen metabolism: boron and vitamin D. Clinical studies show that supplemental boron can increase estradiol levels in women, including postmenopausal women already on hormone therapy. The mechanism appears to involve boron slowing down the enzymes that break estradiol down, effectively letting more of it stay active in the bloodstream longer. Boron is found in foods like avocados, prunes, raisins, and nuts, though the amounts in food are small.
Vitamin D plays a broader role in hormone health. Boron and vitamin D appear to work synergistically, with boron also supporting vitamin D’s activity through a similar enzyme-inhibiting mechanism. Ensuring adequate vitamin D status through sun exposure, fatty fish, or supplementation is a reasonable foundation for anyone trying to optimize hormone levels.
Exercise and Body Composition
The relationship between exercise, body fat, and estrogen is more nuanced than many sources suggest. Because aromatase is present in fat tissue, it’s sometimes assumed that more body fat automatically means more estrogen. However, research on obese women has found no clear correlation between fat mass or body fat percentage and circulating estrogen levels. The relationship is not linear.
What is clear is that extremes in either direction cause problems. Very low body fat, common in endurance athletes or those with eating disorders, can suppress estrogen production enough to stop menstruation entirely. On the other end, obesity disrupts the overall hormonal balance in ways that go beyond simple estrogen numbers. Moderate, regular exercise supports healthy hormone cycling without pushing the body into stress-related hormonal suppression. Resistance training in particular supports metabolic health, which creates a better environment for normal hormone production.
Prescription Estrogen Therapy
For women in menopause or those with clinically low estrogen from other causes, hormone therapy is the most effective option. Estradiol, the same molecule your body naturally produces, is available in several forms: skin patches that release a steady dose over days, topical gels or sprays applied daily, and oral pills. Each delivery method has trade-offs. Transdermal options (patches, gels, sprays) bypass the liver and generally carry a lower risk of blood clots compared to oral forms, which is why many clinicians prefer them.
The choice of delivery method often comes down to personal preference and medical history. Patches are convenient but can irritate skin. Gels absorb quickly and allow flexible dosing. Sprays deliver a measured amount with each application. Your prescriber will typically start at a low dose and adjust based on symptom relief and follow-up blood work.
What to Expect From Hormone Therapy
Most people notice their symptoms improving within a few days to a few weeks of starting treatment. Hot flashes, sleep disruption, and vaginal dryness tend to respond relatively quickly. For some, though, it takes several months to feel a meaningful difference, and the full effects of therapy can continue developing over years. If you haven’t noticed improvement after a few months, that’s worth bringing up with your prescriber, who may adjust the dose, switch the formulation, or refer you to a menopause specialist.
Risks and Considerations
Estrogen therapy is not risk-free. The FDA continues to evaluate the balance between benefits (improved bone density, relief of genitourinary symptoms, possible cardiovascular and cognitive protection) and risks (breast cancer, uterine cancer, and certain cardiovascular events). For women who still have a uterus, estrogen is typically prescribed alongside a progestogen to protect against uterine lining overgrowth. The risk profile varies significantly based on your age, how many years past menopause you are, your personal and family medical history, and the type and dose of therapy used.
Putting It All Together
If your estrogen is mildly low or you’re looking for supportive measures alongside medical treatment, a combination of soy-rich foods, adequate vitamin D, boron-containing foods, and regular moderate exercise forms a reasonable foundation. These strategies work with your body’s existing production and metabolism pathways rather than replacing them.
If you’re experiencing significant symptoms of low estrogen, such as missed periods, persistent hot flashes, vaginal dryness, or bone density loss, dietary and lifestyle changes alone are unlikely to be sufficient. Prescription estrogen therapy is the most direct and well-studied intervention, with multiple delivery options that can be tailored to your situation and risk profile. The key is matching the approach to the severity of the deficiency and the underlying cause.