The annual survey of trends in the UK's health has discovered that more people are eating the recommended daily amount of five pieces of fruit and vegetables a day.
According to the Information Centre for health and social care, daily consumption of five or more portions of fruit and vegetables increased from 22 to 26 per cent for men and from 25 to 30 per cent for women between 2001 and 2005.
However, the research also found that there has been little change in the number of overweight adults, with one in five classed as obese.
"Both of these reports provide information that is of great value in understanding the health of the nation in order that improvement campaigns may be appropriately targeted," said Professor Denise Leivesley, chief executive of the Information Centre.
"Examining changes over time allows us to determine whether the public are taking to heart key public health messages regarding diet, alcohol and smoking."
The study is part of a series of annual surveys called the Health Survey for England, designed to measure health and health related behaviour in the UK.