Alarming research shows New Zealand fast food chains have been increasing their serving sizes.
A University of Auckland study looked at almost 5500 fast food products across 12 food groups at 10 major fast-food chains between 2012 and 2016.
Across all products, researchers found a 5 per cent increase in serving size, a 6 per cent climb in energy density, a 14 per cent jump in energy per serving, and a 12 per cent increase in sodium per serving.
The serving size, energy per serving and sodium per serving had gone up in desserts and pizzas. While sodium density, energy per serving and sodium per serving had gone up in sandwiches and salads.
But Restaurant Brands general manager of marketing Geraldine Oldham said the company, which owns KFC, Pizza Hut, Carl's Jnr and Starbucks, had not increased the size of meals and was working to make them healthier.