Cancer survivors who stuck more closely to five familiar lifestyle rules were less likely to die from any cause in the years after diagnosis, according to a Newcastle University analysis of 28,550 UK Biobank participants published on 28 May 2026.
The five habits are keeping a healthy weight, being physically active, eating a diet rich in whole grains, vegetables, fruit and beans, limiting red and processed meat, and limiting alcohol. Each additional point on the 0-to-5 adherence score was linked to an 8% lower risk of dying from any cause, the World Cancer Research Fund reports.
Participants in the top third for adherence had a 16% lower all-cause mortality risk than those in the bottom third. The association held regardless of whether the individual smoked, Newcastle University said in its announcement.
Which cancers showed the signal
The paper is described as the first of its kind to show the association in a UK cohort. The researchers report that the survival benefit held true across multiple cancer types, with breast and liver cancers highlighted as examples. The findings were published in the journal Cancer.
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Lifestyle information was collected when participants first enrolled in UK Biobank, before their cancer diagnosis. The researchers then tracked deaths and scored each person from 0 to 5 based on how closely their habits matched the WCRF/AICR guidance.
What the researchers actually said
Professor John Mathers, Emeritus Professor of Human Nutrition at Newcastle University who led the work, framed the result carefully.
"This research is incredibly exciting because, for the first time, we have shown that higher adherence to the WCRF/AICR 2018 Recommendations may reduce the risk of mortality for people diagnosed with cancer in a UK cohort," he said in the university's statement.
His colleague Dr. Fiona Malcomson said the take-home message is that the same prevention recommendations also apply to people already diagnosed.
Nadia Ameyah, director of Wereld Kanker Onderzoek Fonds (WKOF), the Netherlands-based charity within the WCRF International network that funded the study, called the results a further sign that the guidance is one of the best ways of maintaining health when living with and beyond cancer, according to Medical Xpress.
Important caveats
The study is observational, not a trial. It can show that healthier habits and longer survival travel together in a large group of people, but it cannot prove one causes the other.
Lifestyle was also measured before diagnosis, so the analysis reflects long-standing habits rather than changes people made after being told they had cancer.
Cancer treatment plans are highly individual. Anyone living with or beyond a cancer diagnosis who is thinking about changing their diet, activity level or alcohol use should discuss it first with their oncology team, particularly if they are in active treatment or managing side effects.
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