http://news.bbc.co.uk/1/hi/health/3200545.stm
Three fruit and veg may be enough
Just three portions of fruit and vegetables a day may be enough to
protect against heart disease, according to a study.
In Britain, the government and leading experts advise people to eat
five portions each day.
But a study by doctors in Greece involving 1,900 people indicates that
three portions may be more than enough.
They told the European Society of Cardiology Congress in Vienna that
eating more may have no benefit.
Just one in eight men and one in seven women in Britain eat the
recommended five portions of fruit and vegetables each day.
This is despite the insistence of experts that it can significantly
reduce their risk of heart disease, stroke and some cancers.
Dr Demosthenes Panagiotakos and colleagues at the University of Athens
carried out a study of 848 people with heart disease and 1,078 healthy
volunteers last year.
They were each asked how much fruit and vegetables they regularly ate.
Overall, 43% of heart patients and 67% of healthy volunteers said they
regularly ate fruit and vegetables.
Of these, the vast majority ate less than two portions a day.
Just 7% of these heart patients and 10% of these healthy volunteers
said they ate more than 2.5 portions each day.
The researchers found that people who ate between one and two portions
of fruit and vegetables a day had a much lower risk of developing
heart disease compared to those who did not eat any.
What's more, they found that this risk fell further with each
additional portion they ate.
They found that people who ate more than 2.5 portions per day reduced
their risk of heart disease by about 70%.
However, they also discovered that this benefit levelled off at this
point. Eating more than three portions did not result in any lower
risk of developing heart disease.
The UK's Department of Health said it stood by its recommendation that
people should eat five portions of fruit and vegetables each day.
A spokeswoman said: "The World Health Organization and the UK
Committee on the Medical Aspects of Food and Nutrition recommendations
are based on epidemiological research that states we should consume at
least 400g of fruit and vegetables a day - five portions.
"Large studies have shown that the more fruit and vegetables that is
consumed the lower the risk of coronary heart disease."
Belinda Linden, cardiac nurse manager for the British Heart
Foundation, said people should continue to try to eat at least five
portions of fruit and vegetables each day.
"The current five portions a day recommendation is based on evidence
from large controlled studies. "The recent study from Athens
University, suggesting we only need to eat three portions of fruit and
vegetables a day, was based on a small number of participants over a
limited number of time.
"This is not convincing enough to change the current recommendation."