Dietary polyunsaturated fatty acids and breast cancer risk in Chinese women: A prospective cohort study
Harvey J. Murff, Xiao‐Ou Shu, Honglan Li, Gong Yang, Xiauyan Wu, Hui Cai, Wanqing Wen, Yu-Tang Gao, Wei Zheng · International Journal of Cancer (2010)
TL;DR
A study of Chinese women suggests that the balance between dietary fats, rather than individual fats alone, is linked to breast cancer risk.
What they did
Researchers tracked 72,571 cancer-free women over 583,998 person-years of follow-up. Participants reported their typical food intake on questionnaires. Over time, the researchers identified 712 cases of breast cancer.
What they found
Specific fats alone showed no link to cancer risk. However, researchers found a significant interaction between n-6 and marine n-3 fats with p = 0.008. Women with the lowest marine n-3 intake and highest n-6 intake had higher risk (RR = 2.06; 95% CI = 1.27-3.34).
Why it matters
These findings suggest that the overall mix of fats in a diet may matter more than any single fat. Everyday food choices that balance different dietary fats may be linked to breast health.
Limits
The abstract does not report specific study limitations. This is general education, not medical advice.
Jargon explained
- Polyunsaturated fatty acids
- Fats found in foods like fish, nuts, and seed oils that the body needs from food.
- Relative risk
- A number that compares the chance of a health outcome between two groups.
Read the original: https://doi.org/10.1002/ijc.25703
Full citation
Harvey J. Murff, Xiao‐Ou Shu, Honglan Li, Gong Yang, Xiauyan Wu, Hui Cai, Wanqing Wen, Yu-Tang Gao, Wei Zheng (2010). Dietary polyunsaturated fatty acids and breast cancer risk in Chinese women: A prospective cohort study. International Journal of Cancer. DOI: 10.1002/ijc.25703
Open access (green): https://www.ncbi.nlm.nih.gov/pmc/articles/3086389
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Educational information only, not medical or dietary advice. Consult a qualified health professional for personal nutrition guidance.