"It's not that people don't care about their health, it's just that there are quite a few barriers in the way when trying to stay active, stay healthy and staying at a healthy weight."
He said the price of protein-rich food and not having the time to exercise were two of the biggest barriers stopping New Zealanders from becoming the healthy people that they wanted to be.
"It's not necessarily the price of healthy food, it's protein that's really expensive ... as is dairy and lean meats.
"On the other hand, if you take a city like Auckland, getting around by anything other than a car is fairly difficult. So people don't get accidental exercise, like walking, which seems to be the easiest way for people to stay in shape."
The top three concerns across the 15 nations were "not getting enough sleep", "not exercising enough" and "too much weight" - especially in New Zealand, Australia and Taiwan.
Kiwis said they ideally wanted 8.4 hours of sleep each night, but reported getting only 6.8 hours.
Dr Schofield said anything between 7 and 8 hours a night was a healthy amount, but even that was often unobtainable.
And New Zealanders were also concerned that they were snacking, smoking and drinking alcohol too much to be healthy.
Dr Schofield said removing the temptation altogether was the key to becoming healthier.
"It's pretty easy to find yourself in front of high calorie food and the reality is humans just don't have the willpower not to eat it ... so go shopping online so you're not tempted by bad foods at the supermarket or make sure you're not hungry before you go food shopping."
To improve fitness, the best way was to build it into your lifestyle - such as using one car per family so you're forced to walk sometimes or getting off the bus two stops early.