The Claim

A low-fat vegan diet supplemented with soybeans results in a mean weight loss of 3.6 kg in postmenopausal women over 12 weeks, which is significantly greater than the 0.2 kg change observed in a control group.

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

Postmenopausal women who followed a low-fat vegan diet with soybeans lost an average of 3.6 kilograms in 12 weeks, while those in a control group lost only 0.2 kilograms.

See the scientific wording

A low-fat vegan diet supplemented with soybeans leads to a mean weight loss of 3.6 kg in postmenopausal women over 12 weeks, which is significantly greater than the 0.2 kg change observed in a control group, indicating that this dietary pattern is effective for weight reduction in this population.

Why this might work

Eating a low-fat vegan diet with soybeans makes people feel full longer because of high fiber and low energy density, so they eat fewer calories. The body burns stored fat for energy because fewer calories come in than are used. Soy compounds help the body remove excess estrogen through the gut, which lowers fat storage and reduces inflammation. Together, these changes cause the body to lose weight.

Verified 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 a low-fat vegan diet with soybeans lost about 3.6 kg in 12 weeks, while those who ate normally lost almost nothing — so this diet really helped them lose weight.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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