WCRF/AICR Third Expert Report — Diet, Nutrition, Physical Activity and Cancer
In plain English
A continuously updated meta-review covering 51 million people across thousands of studies, run by independent expert panels. The synthesis is unambiguous: fibre, whole grains, vegetables and fruit are consistently protective against multiple cancers; alcohol is consistently harmful, with no safe level for breast and several other cancers.
Why it matters
Fibre, whole grains, fruit/veg consistently protective; alcohol consistently harmful.
Informs: Cancer
Provenance
- Design
- Systematic review
- Sample size (n)
- 51,000,000
- Peer-reviewed
- Yes
- Replications
- 2
- Funding
- Public / academic
- Funders
- WCRF / AICR (non-profit)
- Institutions
- World Cancer Research Fund International, American Institute for Cancer Research
decades.plus score
A transparent 0–100 weighted sum across six components. Higher scores reflect bigger, cleaner, more replicated work.
Caveats
Recommendations are population-level, not personalised. Evidence strength varies sharply by cancer site — strongest for colorectal, weaker for less-studied cancers.