The Claim
Soy isoflavone supplements containing at least 54 mg of aglycone equivalents, taken daily for 6 weeks to 12 months, reduce the frequency of menopausal hot flashes by 20.6% compared to placebo, with a 95% confidence interval of -28.38% to -12.86%, in perimenopausal and postmenopausal women.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Women who are perimenopausal or postmenopausal who take soy isoflavone supplements containing at least 54 mg of aglycone equivalents daily for 6 weeks to 12 months experience a 20.6% reduction in the frequency of hot flashes compared to those taking a placebo.
See the scientific wording
Soy isoflavone supplements containing at least 54 mg of aglycone equivalents, taken daily for 6 weeks to 12 months, reduce the frequency of menopausal hot flashes by 20.6% compared to placebo, with a 95% confidence interval of -28.38% to -12.86%, indicating a statistically significant and clinically relevant effect in perimenopausal and postmenopausal women.
Soy isoflavones attach to estrogen receptors in the brain's temperature control center, which reduces false signals that the body is overheating, leading to fewer hot flashes.
What the research says
1 studyThis study found that women who took soy supplements daily for at least six weeks had about 20% fewer hot flashes than those who took sugar pills — exactly what the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.