In New Zealand, one in four adults are overweight or obese, the Health Survey found.
In a country where most of the population are middle class, the figures are even higher.
The data was released on Friday by the Department of Health, which has been under fire from the public in recent weeks over its handling of obesity and the rise in the rate of diabetes.
New Zealand’s obesity rate has jumped by more than 10% over the last three years.
The country’s rates are now higher than France, Belgium and Germany, which have all seen a dramatic increase in obesity rates over the past decade.
New South Wales, the country’s most populous state, has the highest obesity rate in the country at 20.7%.
The most obese residents are aged over 65, with 22.6% of people overweight or obesity.
The report found that more than half of New Zealanders are overweight, with the highest proportion in their 40s and 50s.
This is the highest percentage of people in their 20s who are overweight in the OECD, the body of OECD countries.
The study also found that many New Zealand residents have high rates of diabetes, as a result of eating unhealthy diets and being overweight or overweight and obese.
Some people have a blood sugar level higher than 140mg/dl.
Newzealand has one of the highest rates of obesity in the developed world, with an obesity rate of 34.9% in 2012.
The Health Survey showed that over half of adults were overweight or had overweight or over-obese BMI (body mass index) of 25 or higher.
New Zealand had a higher proportion of overweight and over-weight people in its population than most OECD countries, the report found.
The survey showed that obesity rates among New Zealand citizens were higher than in most OECD nations, but the national average rate of obesity was higher.
However, New Zealand had the highest rate of obese people, with 28.7% of Newzemen aged 20-34.
In New South Africa, obesity was found to be higher in younger adults, with more than three-quarters of adults aged 25-34 having an overweight or a obese BMI.
In the OECD countries of Australia, Canada, France and the United Kingdom, obesity rates were higher among people aged over 50, with almost half of people over 50 overweight or having an obese BMI of 30 or higher, the survey found.
Obesity rates were highest among men, aged 25 to 34, and women, aged 20 to 24, but rates were also higher among children and young people.
In some countries, like Canada and Australia, obesity and diabetes rates were lower, the study found.
Health Minister Peter Dunne said the health service was committed to addressing obesity.
He said the government had recently launched a national obesity strategy, and had introduced measures to help address the obesity epidemic.
The government had introduced more than 100 programmes and measures to support people to reduce their risk factors for obesity, he said.
The new report also revealed that more people were diagnosed with diabetes in New Zealand than in any other OECD country, with 3.4 million people having diabetes.
People with diabetes are at a higher risk of complications, including heart disease, stroke and other complications.
However people with diabetes have more risk factors, such as being older and living in older age groups.
The OECD countries that have the highest diabetes rates in the World include: United States – 19.1% United Kingdom – 14.4% France – 11.8% Germany – 10.9 (Source: OECD) More than half the world’s population, or 2.4 billion people, have diabetes.
The WHO estimates that one in five people have diabetes worldwide.
Diabetes is the most common type of chronic disease in people of all ages and is a leading cause of disability and premature death.
The United States has the world number one diabetes prevalence, with about two in three Americans aged 25 and older.
More than one in three people in Australia and Japan have diabetes, the United Nations says.
People in the United States have the second highest diabetes prevalence rate of any country.
More on diabetes: What is diabetes?
What are the causes of diabetes?
Diabetes affects millions of people worldwide and is the third leading cause.
Diabetes affects people of every age group, from babies and young children to adults.
Diabetes can be treated by taking diabetes medications such as insulin, but many people who have diabetes do not get the necessary insulin.
People who have had diabetes can also be helped by lifestyle changes such as eating a healthy diet, exercising and losing weight.
Some research has suggested that lifestyle changes and physical activity could reduce diabetes risk.
New York City’s Department of Financial Services is one of several city departments that have taken steps to reduce obesity and prevent diabetes.
A new initiative called “New York City Obesity Strategy” aims to help city departments identify barriers that might limit the health of people living in the city.
New Yorkers will get a