The Yorkshire Cancer Research charity has announced it will fund £1.5 million pounds of research into whether Omega-3 can help prevent bowel cancer returning after surgery.
Four-hundred-and-fifty patients will take part in the study which has been announced to mark International Clinical Trials Day.
Some of the patients who are having surgery to treat bowel cancer which has spread to the liver will be given a concentrated form of Omega-3, while others will be given a placebo, to see if long-term treatment improves survival.
Around 15 per cent of all liver surgery for bowel cancer in the UK is performed in Yorkshire.
The study follows earlier investigations funded by Yorkshire Cancer Research, which tested the effect of EPA on cancer cells in the lab. The team also conducted a small, preliminary 'window' trial, which suggested some survival benefit.
A cancer charity has launched a major investigation into why death rates are higher in East Yorkshire than elsewhere.
Yorkshire Cancer Research wants to make sure patients in poorer parts of the region receive the same care and have the same chances of surviving the disease as in other areas.
The five-year project, run by the Hull York Medical School and costing £750,000, will look at diagnosis and treatment as well as the care of patients with advanced cancer.
A sponsored bike ride which has raised thousands of pounds for cancer research is next going to be held in Ilkley.
Pedal for Pounds, organised by Yorkshire Cancer Research, has been held at either Harewood House, Leeds and The Great Outdoors, near Doncaster.
This time, though, participants, can tackle a 62 mile route through the Yorkshire Dales, starting and finishing at Ilkley Rugby Club.