Matcha and hormones: What does it do for women?

Reading time: approx. 7 minutes  |  Last updated: June 2026

Through EGCG and L-theanine, matcha has demonstrable effects on hormones that are specifically relevant to women: cortisol, estrogen, and bone density. The science is nuanced but consistent in a number of findings: EGCG modulates estrogen metabolism, L-theanine lowers cortisol, and regular green tea intake improves bone density in premenopausal women.

Start today with ceremonial matcha from Kagoshima. Order the 30-gram introductory pack and experience the difference. Free shipping on orders over €50.

Hormone balance is one of the most searched topics among women between 25 and 55. PMS, perimenopause, and menopause bring hormonal fluctuations that affect energy, sleep, and mood. Through several channels, matcha helps address those fluctuations. Read more about how L-theanine lowers your stress and cortisol for background on the stress hormone mechanism.

Medical disclaimer: Matcha is not a substitute for hormonal treatment or medication. For severe PMS symptoms, menopausal complaints, or hormonal conditions: always consult your GP or gynecologist.

What Does Science Say?

Quick answer: Three verifiable studies show that green tea improves bone density in premenopausal women, modulates estrogen metabolism, and reduces depression in postmenopausal women via increased estradiol. The effects on estrogen levels in healthy premenopausal women are less unambiguous.

Study 1: Green tea improves bone density in women (PubMed, PMID 33514873)

A prospective study published on PubMed (Ni et al., European Journal of Clinical Nutrition, 2021, PMID 33514873) investigated the link between premenopausal tea intake and postmenopausal bone mineral density in 1,902 women. Women who drank tea more than 4 times a week before menopause had significantly higher bone mineral density after menopause than women who did not drink tea. This effect was independent of the type of tea. Women who started drinking tea only after menopause did not have this benefit: the time of starting is decisive.

Study 2: Green tea increases estradiol in postmenopausal women (PubMed, PMID 37960167)

A study published on PubMed (Wan et al., Nutrients, 2023, PMID 37960167) showed that long-term green tea consumption in postmenopausal women significantly increases estradiol levels and reduces depressive symptoms. The researchers found that EGCG modulates the activity of aromatase, the enzyme that converts androgens into estrogen. This suggests that matcha may have a mild estrogenic effect in postmenopausal women.

Study 3: EGCG and estrogen metabolism (PMC, PMC6461722)

A randomized controlled trial published in PMC (Samavat et al., 2019, PMC6461722) gave postmenopausal women 843 mg of EGCG daily for 12 months. Result: no significant changes in circulating estradiol, estrone, or testosterone. However: EGCG did influence estrogen metabolites in the urine. The authors concluded that EGCG modulates estrogen metabolism without significantly altering circulating hormone levels, which is relevant for the risk profile of hormone-sensitive conditions.

Matcha per Life Stage: What is Relevant?

Quick answer: The effects of matcha on hormones are life-stage dependent. For young women (20-40): cortisol and PMS support via L-theanine. Around menopause: bone density and potentially mild estrogenic effect. Post-menopause: cardiovascular protection via EGCG.

Matcha and PMS: How L-Theanine Helps

Quick answer: PMS symptoms are partly caused by a cortisol spike in the luteal phase of the cycle. L-theanine lowers cortisol via alpha waves and GABA. This reduces premenstrual stress symptoms such as irritability, sleep problems, and anxiety.

Premenstrual syndrome (PMS) affects an estimated 3 to 8% of women in severe form and up to 75% in mild form. The luteal phase of the cycle, the two weeks before menstruation, is characterized by higher cortisol activity and lower progesterone levels. That combination increases irritability, sleep problems, and anxiety.

The L-theanine in matcha increases alpha waves and lowers cortisol, exactly the substances that are extra active during the luteal phase. Three randomized studies confirm the stress-reducing effect of L-theanine. Read more in our article about matcha and stress: does L-theanine really work. And for the sleep component: matcha and sleep: are you drinking it at the right time.

Matcha and Bone Density

Bone density loss is one of the biggest health problems for postmenopausal women. Estrogen protects bones. When estrogen drops, bone breakdown increases. EGCG has direct protective effects on osteoblasts (bone-building cells) and inhibits osteoclasts (bone-breaking cells).

The key outcome of the Ni study: women who drank tea before menopause had significantly better bone density after menopause. This is a preventive argument: do not wait until menopause, but build a daily matcha habit now. This aligns with the broader cardiovascular protection that matcha offers via EGCG and cholesterol reduction.

Practical Advice per Stage

Young women (20-40)

• Drink matcha extra consistently during the luteal phase (2 weeks before menstruation) for cortisol buffering

• Never drink matcha at the same time as iron supplements or with an iron-rich meal

• 2 cups per day (morning and afternoon) is optimal

Women around menopause (40-55)

• Start with daily matcha now as bone density protection: the preventive effect occurs with use before menopause

• Combine with sufficient calcium and vitamin D for a synergistic bone effect

• Preferably drink matcha separately from meals because of iron absorption

Postmenopausal women (55+)

• Matcha supports cardiovascular health via EGCG and cholesterol reduction

• Possibly a mild positive effect on estradiol and mood (Wan 2023)

• When using hormone therapy, always discuss interactions with your doctor

In Amsterdam, Rotterdam, Utrecht, The Hague, Haarlem, Almere, Zaandam, Hoofddorp, Purmerend, Laren, Soest, Venlo, and Alphen aan den Rijn, more and more women are discovering matcha as part of a conscious health routine. Ceremonial matcha from Kagoshima by Unmatched Matcha is the quality standard that makes the difference.

Frequently Asked Questions about Matcha and Hormones

Is matcha good for hormone balance in women?

Matcha supports hormone balance via two routes: L-theanine lowers cortisol (stress hormone) and EGCG modulates estrogen metabolism. The effect is not as a direct hormone replacement but as support for the hormonal system.

Does matcha help with PMS?

The L-theanine in matcha demonstrably lowers cortisol and promotes alpha waves. Cortisol is extra active during the luteal phase of the cycle. Three randomized studies show significant stress reduction due to L-theanine. This makes matcha relevant as a supplement for PMS-related stress symptoms.

Is matcha good during menopause?

Yes, for several reasons. First, daily tea intake before menopause significantly improves postmenopausal bone density (Ni 2021). Second, EGCG can have a mildly estrogenic effect via aromatase modulation. Third, L-theanine lowers cortisol, which is extra active during menopause.

Does matcha affect estrogen levels?

With normal intake, EGCG has little direct effect on circulating estrogen levels (Samavat 2019). However, EGCG does modulate estrogen metabolism and can slightly increase estradiol in postmenopausal women (Wan 2023). The effect is mild and differs per life stage.

How much matcha per day for hormonal support?

The studies use equivalents of 2-3 cups per day (4-6 grams). For bone density, consistency over years is more important than quantity per day. For cortisol regulation (PMS), the effect is already noticeable at 1-2 cups per day.

Through EGCG and L-theanine, matcha has proven relevant effects for women in different life stages. From cortisol buffering during PMS to bone density protection before menopause and a mild estrogenic effect after menopause. Start today with the 30-gram introductory pack from Unmatched Matcha. Ceremonial from Kagoshima, free shipping on orders over €50.