More than $1 billion is spent on takeaways and fast food each year in Auckland.

High deprivation areas have a higher concentration of the outlets, and fewer places - like supermarkets - selling fresh food.

Nutritionist Nikki Hart told Kate Hawkesby for people with low incomes, working multiple jobs and with large families to feed, the food looks attractive after a long day.

She says the industries are smart - they know exactly where to put outlets, such as where there's high traffic volume outside schools and churches.

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