Skip to main content

Phytoestrogen

Soy Isoflavones (Menopause)

Also known as: Genistein, Daidzein, Isoflavone extract, Phytoestrogens

B
Evidence

Plant estrogens from soy that may provide mild menopause symptom relief.

Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.

Find the best Soy Isoflavones (Menopause) supplements — free
See Soy Isoflavones (Menopause) products scored on dose & form, then track your intake in the app.
Open app →

Primary uses

  • Hot flashes (mild)
  • Bone health
  • Cardiovascular (mild)

How it works

  • Mild estrogenic activity
  • May reduce hot flashes
  • Bone health support
  • Cardiovascular effects

Dosage

Typical range
40-80mg isoflavones daily
Timing
Divided doses
With food
Either way
Duration
Several months for effect
Special populations
Menopausal women seeking mild symptom relief

Forms

  • Isoflavone extract
  • Soy foods
  • Capsules

Safety

Common side effects

  • GI upset
  • Bloating

Contraindications

  • Hormone-sensitive cancers (controversial/discuss)
  • Soy allergy

Evidence notes

Moderate evidence for mild hot flash relief

Grade B: Some human trials support key claims; further confirmation needed.

Related in Phytoestrogen

Check a full stack

Formulate's free interaction checker lets you paste in any combination of supplements and medications at once — every pairing flags severity, timing, and cited evidence.

Open the checker

Where does Soy Isoflavones (Menopause) fit in your stack?

Answer two questions and get a stack graded on research — every ingredient scored on the evidence behind it, not the marketing.

Build my stack

2 questions · free · no account needed to start

Also on iPhone — get the free app

📬 Get new guides in your inbox

Evidence-based supplement guides, no spam

We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.

Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.