The Claim

A 12-week low-fat vegan diet supplemented with soybeans reduces the frequency of severe hot flashes by 92% in postmenopausal women, from an average of 1.3 per day to 0.1 per day, compared to no change in a control group.

Source: Isoflavones and changes in body weight and severe hot flashes in postmenopausal women: 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
62score
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

Postmenopausal women who followed a low-fat vegan diet with soybeans for 12 weeks experienced a 92% reduction in severe hot flashes, going from 1.3 per day to 0.1 per day, while women in a control group showed no change.

See the scientific wording

A 12-week low-fat vegan diet supplemented with soybeans reduces severe hot flash frequency by 92% in postmenopausal women, from an average of 1.3 per day to 0.1 per day, compared to no change in a control group.

Why this might work

Soy compounds enter the bloodstream and bind to specific receptors in the brain's temperature control center. This binding reduces nerve signals that cause blood vessels in the skin to suddenly widen, which stops the sudden feeling of intense heat.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Isoflavones and changes in body weight and severe hot flashes in postmenopausal women: A secondary analysis of a randomized clinical trial

    Women who ate a low-fat vegan diet with soybeans every day for 12 weeks had far fewer intense hot flashes—down from about once a day to less than once every 10 days—while women who didn’t change their diet saw no difference. The soy in their diet was likely the reason.

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

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