The Claim

A low-fat, plant-based diet with daily soybean intake for 12 weeks results in an average weight loss of 3.5 kg in postmenopausal women, while control groups without dietary change experience weight gain.

Source: The Women's Study for the Alleviation of Vasomotor Symptoms (WAVS): a randomized, controlled trial of a plant-based diet and whole soybeans for postmenopausal women

What the research says

Supports is higher

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

Supports
60score
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 follow a low-fat, plant-based diet with daily soybeans for 12 weeks lose an average of 3.5 kilograms, while those who do not change their diet gain weight.

See the scientific wording

A low-fat, plant-based diet with daily soybean intake for 12 weeks leads to an average weight loss of 3.5 kg in postmenopausal women, while control groups without dietary change experience weight gain, suggesting this dietary pattern may support healthy weight management during menopause.

Why this might work

Eating only plants and soy every day improves how the body uses sugar, which tells fat cells to stop storing fat and start burning it. Soy also activates a specific receptor in the brain that helps the body burn more energy instead of storing it as fat.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: The Women's Study for the Alleviation of Vasomotor Symptoms (WAVS): a randomized, controlled trial of a plant-based diet and whole soybeans for postmenopausal women

    Women who ate only plant-based foods with soybeans every day for 12 weeks lost about 3.5 kg on average, while women who kept eating normally gained a little weight — so this diet 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.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.