The Claim

A low-fat vegan diet supplemented with 86 grams of cooked soybeans daily for 12 weeks reduces severe postmenopausal hot flashes by 92% in women aged 40–65 with at least two moderate-to-severe hot flashes per day, compared to a control group maintaining their usual diet.

Source: Diet quality, body weight, and postmenopausal hot flashes: a secondary analysis of a randomized clinical trial

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
67score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Women aged 40–65 who eat a low-fat vegan diet with 86 grams of cooked soybeans daily for 12 weeks experience a 92% reduction in severe hot flashes compared to women who continue their normal diet.

See the scientific wording

A low-fat vegan diet supplemented with 86 grams of cooked soybeans daily for 12 weeks reduces severe postmenopausal hot flashes by 92% in women aged 40–65 with at least two moderate-to-severe hot flashes per day, compared to no significant change in a control group maintaining their usual diet, suggesting that eliminating animal products and reducing fat intake may be an effective non-hormonal strategy for managing vasomotor symptoms.

Why this might work

Eating soybeans and plant-based foods increases compounds that mimic estrogen in the body. These compounds bind to specific receptors in the brain's temperature control center, making it less sensitive to small changes in body heat. At the same time, losing body fat reduces inflammation and lowers the amount of estrogen that fluctuates in the blood. Together, this keeps the body's heat regulation stable and stops hot flashes from happening.

Supported mechanismbased on 1 study

What the research says

1 study

  1. Study: Diet quality, body weight, and postmenopausal hot flashes: a secondary analysis of a randomized clinical trial

    Women who ate only plants and soybeans for 12 weeks had 92% fewer intense hot flashes, while those who kept eating normally saw no change — so this diet really helped.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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