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Red Clover Extract
Isoflavone-rich plant with weak estrogenic activity that reduces hot flashes and supports bone density and arterial flexibility.
What the evidence says
Red Clover appears to help in 12 of 14 studies with measurable effects — the evidence leans clearly favourable.
Most evidence is from high-quality meta-analyses and randomised trials published 2004–2026 with a typical study size of 120 participants.
Based on 40 studies · 26 meta-analyses · 7 RCTs · 18,262 total participants
Confidence
HighWhat the studies found
By outcome
Red Clover has an evidence score of 8/10 — strong evidence based on 40 indexed studies, including 32 meta-analyses. Isoflavone-rich plant with weak estrogenic activity that reduces hot flashes and supports bone density and arterial flexibility.
The commonly studied dose of Red Clover is 40-80mg isoflavones daily. Research points to an estimated optimal dose around 80mg isoflavones, with a minimum effective dose near 40mg isoflavones. Individual response varies — start low and adjust.
Timing is flexible for Red Clover — consistent daily use matters more than the time of day. Red clover (Trifolium pratense) isoflavones — biochanin A, formononetin, genistein, and daidzein — act as selective estrogen receptor modulators (SERMs).
Soy Isoflavones
Likely helpsPlant compounds with weak estrogenic effects that support menopausal symptoms, bone health, and cardiovascular function.
Maca
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Last reviewed May 2026 · evidence from 38 studies · how we score
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
Red Clover (Trifolium pratense) is a flowering plant rich in isoflavones, particularly genistein, daidzein, formononetin, and biochanin A. These compounds have weak estrogenic activity, making red clover popular for managing menopausal symptoms like hot flashes. Research also suggests potential benefits for bone health and cardiovascular function through its effects on lipid profiles and arterial flexibility.
Binds to estrogen receptors with weak estrogenic effects
May slow bone loss through estrogenic effects
May improve arterial flexibility and lipid profiles
How Red Clover works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
40-80mg isoflavones daily
Loading: Not required; start with lower dose
Take with food
| Form | Type |
|---|---|
| 💊Standardized extract (40mg isoflavones per dose) | Recommended |
| 💊Dried herb capsules | Alternative |
| 💊Promensil (branded extract) | Alternative |
Standardized extracts provide consistent isoflavone levels. Promensil is a well-researched branded form.
Minimum: 8 weeks
Optimal: 24 weeks
Cycling: Not required
Note: Doses typically standardized to isoflavone content (40-80mg). May take 4-12 weeks to see full effects on menopausal symptoms.
Based on meta-analysis showing statistically moderate reduction in daily hot flash frequency. Effect size is modest and individual response varies significantly.
Fewer and less intense hot flashes
May help maintain bone density
Modest improvements in cholesterol
May affect hormone-sensitive conditions
Avoid due to estrogenic effects
Primary target population; consult physician
Additive estrogenic effects
May interfere with anti-estrogen effects
May have anticoagulant effects — may affect platelet aggregation or vitamin K-dependent clotting factors, altering anticoagulant efficacy
Tip: Reduce dose
Tip: May resolve with continued use
Tip: Take with food
Red Clover is generally safe at recommended doses, with a few precautions worth noting. The most commonly reported side effects are breast tenderness, headache, nausea. Use caution if any of these apply to you: Hormone-sensitive cancers (breast, ovarian, uterine); History of endometriosis; History of blood clots.
Ashwagandha
Likely helpsReduces cortisol and anxiety while improving sleep quality and physical recovery in stressed adults.
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