Mixed
High diet quality is associated with reduced all-cause and cancer mortality specifically among cancer survivors.
If you are a cancer survivor, prioritizing a high-quality diet (high in plants, whole grains, and healthy fats; low in processed foods and sugar) is associated with a lower risk of dying from cancer or other causes. Consult with your oncology team or a registered dietitian to tailor these general findings to your specific treatment and recovery needs.
In cancer survivors, the highest diet quality was linked with lower risk of all-cause (RR 0.83, 95% CI 0.77 to 0.88, I2 ¼ 45%, n ¼ 12) and cancer mortality (RR 0.82, 95% CI 0.75 to 0.89, I2 ¼ 44%, n ¼ 12).
Why this rating
Moderate credibility, lower number of studies (n=12) compared to general population outcomes, and some heterogeneity.
Source
Diet Quality as Assessed by the Healthy Eating Index, Alternate Healthy Eating Index, Dietary Approaches to Stop Hypertension Score, and Health Outcomes: A Second Update of a Systematic Review and Meta-Analysis of Cohort Studies
Jakub Morze et al. · Journal of the Academy of Nutrition and Dietetics · 2020
DOI 10.1016/j.jand.2020.08.076
More from this paper
- Adhering to high-quality dietary patterns, as measured by HEI, AHEI, or DASH scores, is inversely associated with a reduced risk of all-cause mortality, cardiovascular disease, cancer, type 2 diabetes, and neurodegenerative diseases.Good
- The DASH score may be more effective than the HEI at reducing the risk of type 2 diabetes, and both AHEI and DASH are associated with reduced neurodegenerative disease risk, whereas HEI was not.Moderate
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