A number of initiatives are under way to tackle the problem
Childhood obesity rates among four to six-year-olds in south west Scotland are among the highest in the country.
According to the latest figures, 23.2% of primary one pupils in Dumfries and Galloway are overweight.
The NHS Scotland statistics show the region is above the national average which stood at 20% in 2007/08.
NHS Dumfries and Galloway said it was committed to tackling the problem and was working to establish services and programmes to address the issue.
The figures were based on routine health reviews of primary one children.
Experts calculate the height and weight of each child to create a body mass index (BMI).
In Dumfries and Galloway 1,319 primary one pupils were subject to a health review in 2007/2008.
According to the report, 23.2% were overweight - a slight fall from 23.8% the year before.
Of the pupils considered overweight, 8.3% fell within the obese category and 3.9% severely obese.
Jo Capella, of NHS Dumfries and Galloway's health improvement programme, said a number of avenues were being pursued to tackle the problem.
"We are trialling a number of approaches that encourage family involvement and support changes in behaviour such as increasing physical activity, decreasing inactivity and healthy eating," she said.
A range of one-to-one and group activities are on offer.
"In addition a great deal of work is under way that contributes to tackling issues of overweight and obese children locally," Ms Capella added.
"If any family has a worry or concern about their child's weight they should contact their GP, practice nurse, health visitor or school nurse who will advise them where support can be made available."