Healthy Diets Have Better Impact on Colorectal Cancer

People who improved to healthier diets after being diagnosed with Colorectal cancer as well as patients who followed one, had a lower risk of death from colorectal cancer and all causes.

Healthy diets have better impact on colorectal cancer. Image credit: Jasper Greek Golangco/Wikipedia (PD)

Previous studies have suggested a strong influence of diet quality in disease outcomes, and that some pre- and postdiagnosis dietary components are related to survival in men and women with CRC.

But studies of dietary patterns to assess overall diet quality in relation to overall and CRC-specific mortality are inconsistent, making the development of evidence-based recommendations for CRC survivors difficult.

Investigators from American Cancer Society found those whose pre- and postdiagnosis diets were consistent with the American Cancer Society Guidelines on Nutrition and Physical Activity for Cancer Prevention had lower all-cause and CRC specific mortality.

Pre-diagnosis diets that most closely aligned with ACS dietary recommendations were associated with a 22% lower risk of all-cause mortality compared to those on the other end of the spectrum. Significant inverse trends were observed for CRC specific mortality, as well.

For the highest quartile of pre-diagnosis Western dietary pattern, which is characterized by high intakes of red meat and other animal products, there was a 30% higher risk of CRC death compared with the lowest quartile.

Postdiagnosis dietary patterns were also significantly associated with the risk of death. The highest compared with the lowest ACS-score showed a 65% lower risk of CRC mortality and a 38% lower risk of mortality from all causes.

The study authors say additional diet patterns and scores that also were based on plant foods and low red and processed meat consumption corroborated their main findings. They conclude that the results suggest the importance of diet quality as a potentially modifiable tool to improve prognosis among men and women with CRC. (Tasnim News Agency)

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