Research

Hormonal

A low-fat dietary intervention (reducing fat intake to 15% of calories) improves recurrence-free survival and overall survival in breast cancer survivors, particularly those with hormone-receptor-negative disease or without hot flushes.

For breast cancer survivors, reducing dietary fat to around 15% of total calories may improve survival outcomes, especially if you do not have hot flushes. This should be done through structured counseling and regular monitoring, not just self-guided changes. Focus on reducing fat intake specifically, as simply eating more fruits and vegetables without reducing fat did not show the same benefits.

GoodSupportsHIGH confidence
The hazard ratio (HR) of recurrence in the intervention group compared with the control group was 0.76 (95% CI = 0.60 – 0.98; P = 0.077)... Furthermore, in 362 women with estrogen receptor (ER) and progesterone receptor (PR) disease, a significant overall survival (OS) benefit was seen in the intervention group (7.5% vs 18.1%, cumulative mortality)
Nicola J Davies et al. · British Journal of Cancer · 2011

Why this rating

Based on large-scale multicentre RCTs (WINS, n=2437), though some p-values were borderline (0.077) and conflicting results exist in other trials (WHEL).

Source

The role of diet and physical activity in breast, colorectal, and prostate cancer survivorship: a review of the literature

Nicola J Davies et al. · British Journal of Cancer · 2011

DOI 10.1038/bjc.2011.423

narrative_reviewCited 280×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →