The Claim

Higher adherence to overall plant-based diets is associated with a 24% lower risk of lung cancer when comparing the highest versus lowest dietary index categories, independent of smoking status.

Source: Healthful and unhealthful plant-based diets and site-specific cancer risk: a systematic review and meta-analysis of observational studies

What the research says

Supports is higher

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

Supports
53score
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.

Correlation
1 study reviewed
In plain English

People who follow plant-based diets more closely have a 24% lower risk of developing lung cancer compared to those with the lowest adherence, regardless of smoking history.

See the scientific wording

Higher adherence to overall plant-based diets is associated with a 24% lower risk of lung cancer when comparing the highest versus lowest dietary index categories, suggesting that plant-rich diets may reduce lung cancer risk independently of smoking status, though evidence is limited to three cohort studies.

Why this might work

Eating more whole plant foods like fruits, vegetables, legumes, and whole grains lowers inflammation and DNA damage in the lungs, which stops cells from turning into cancer.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Healthful and unhealthful plant-based diets and site-specific cancer risk: a systematic review and meta-analysis of observational studies

    People who ate more plant-based foods had a 24% lower chance of getting lung cancer compared to those who ate fewer plant foods, according to this study — even though the number of studies is small, the result matches what the claim says.

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.