Fresh figures have outlined our nation's health

Health New Zealand's released a report on the population's health - the first of its kind since the agency was established.

A third of Kiwi adults have a BMI of 30 or more -- meaning they carry enough weight to affect their health.

Report author Gary Jackson says health professionals are more concerned once BMI is higher than 35.

He says you start to see rates of things like diabetes - which is a concern for individual patients, and the cost to the health system.