http://en.wikipedia.org/wiki/Obesity_in_New_Zealand
Out of a total estimated population of 4.3 million in 2008,[3] the Ministry of Health's studies show that roughly 1.13 million New Zealand adults are overweight (BMI between 25.0 and 29.9),[4] with an extra 826,000 obese (BMI over 30.0).[4] The 2008 figures, which represent samples from 2006 and 2007, show that 25% of New Zealand adults are obese, a slight increase from 2002 and 2003 (24%) but a wide rise from 1997 (19%).[1] If current trends are to continue, the obesity rate will rise to 29% by 2011.[5]
Obesity is more prevalent in New Zealand females from age 5 until the age of 34, at which time the males overtake the females in terms of percentage.[1] After essentially coming in at a dead heat in the 55 to 64 bracket, female obesity becomes a higher risk for 65-74 year olds than it does for males, only to switch odds again after 75.[1]