The Telegraph has the details:
“Some 20,000 lives could be saved each year if Britons switched to a Mediterranean diet, according to a new study.
The Medical Research Council (MRC) and Cambridge University followed nearly 24,000 people in the UK for up to 17 years to see how their diet affected the health of their heart.
They discovered that people who followed a diet high in fruits, vegetables, whole grains, nuts, fish and olive oil lowered their risk of cardiovascular disease by up to 16 per cent. The researchers estimate that 12.5 per cent of cardiovascular deaths, such as heart attacks and strokes, could be prevented if everyone switched to the Mediterranean diet. There are around 160,000 heart deaths each year so 20,000 deaths could be avoided just by eating more healthy foods.”
Source: Mediterranean diet could prevent 20,000 deaths in Britain each year