Colorectal cancer awareness: diet changes can help

There are several main factors that can reduce your chances of getting bowel and rectal cancer. Weight optimisation, a good diet, exercise, vitamin D supplementation and regular colonoscopies.

A study co-funded by the World Cancer Research Fund, Cancer Research UK and Diabetes UK found that although being over weight was a factor in causation, that body fat position made a difference between men and women.

A higher BMI was more risky for men but for women, carrying the weight on the abdomen compared to the hips was worse. Only a 5 point increase in BMI for men increased bowel cancer by 23% in men but only 9% in women.

Higher fish and fish oil intake was associated with a 7% lower risk of bowel cancer in a European study.

Consuming flavinoid rich foods such as apples, tea and pears reduces both cancer and cardiovascular disease mortality particularly in those who also smoke and drink a lot of alcohol in a Danish study. The effects levelled off at around 500mg a day for all cause and cardiovascular mortality and 1000mg a day for cancer related mortality.

If you are unfortunate and get colorectal cancer, an Edinburgh analysis of seven RCTs has found that Vitamin D supplementation produced a 30% reduction in adverse outcomes.

Vaughan-Shaw et al. The effect of vitamin D supplementation on survival in patients with colorectal cancer: systematic review and meta-analysis of randomised controlled trials. Br J Cancer 2020 Sep 15.

3 thoughts on “Colorectal cancer awareness: diet changes can help”

  1. Well when i first saw the picture i thought of an amusement attraction that always came to my county fair. It was termed the tunnel of love, but was really called something like the tunnel to the underworld or the path to hell, or something like that.

    The idea was to get your date to walk with you through the attraction and she would hold on to your am tightly. It was neither scary or fun but always interesting. I mean if you had a date. If not, well not so much. So my first thought was of the tunnel of love.

    What actually struck me about the article is how once again Vitamin D is part of good health. But especially good for PWD’s.



  2. Thank you. Great article. Some interesting facts there for someone who manages several conditions and has lost several members of her family to bowel cancer it is good to know I’m doing the best things to avoid it myself.


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