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Soy Isoflavones
What it’s good for
Soy Isoflavones for Hot Flashes
No Benefit4 studies · 2 supporting · 2 against
How it was tested: The Menopause Society names soy foods and soy extracts as not recommended for hot flushes.
Plant compounds that weakly bind oestrogen receptors, meant to steady the brain’s thermostat.
Dose: 30–100 mg
Tested as: standardized soy isoflavone extracts, 40-100 mg total isoflavones/day in most trials; the more consistent positive signal came from genistein-predominant extracts specifically (30-54 mg genistein/day), not mixed isoflavone blends or soy food/diet counseling.