Research
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Regular physical activity reduces the risk of colorectal cancer and probably reduces the risk of breast cancer.
Engage in regular physical activity. This is recommended to help reduce the risk of colorectal and breast cancer.
GoodSupportsHIGH confidence
Physical activity, the main determinant of energy expenditure, reduces the risk for colorectal cancer and probably reduces the risk for breast cancer; regular physical activity should be taken.
Why this rating
The paper states 'reduces the risk' for colorectal cancer and 'probably reduces' for breast cancer, based on consistent associations.
Source
Diet, nutrition and the prevention of cancer
Timothy J. Key et al. · Public Health Nutrition · 2004
DOI 10.1079/phn2003588
narrative_reviewCited 651×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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