On a month-by-month basis, food prices in January rose 1 per cent from December, but were down 0.6 per cent after seasonal adjustment.
Fruit and vegetable prices rose 4.5 per cent, with grocery prices up 0.9 per cent. They were the biggest contributors to the gain. Meat and poultry, and non-alcoholic drink prices also rose.
Consumer prices manager Caroline White attributed the jump in fruit and vegetable prices to a return to more normal harvests after bumper production late last year.
Broccoli prices more than doubled from a seven-year low of $1.25 a head in December, she said. Lettuce prices rose 79 per cent.
Stats NZ noted that milk prices fell to a 19-month low last month.
"Supermarket milk prices are highly influenced by the farmgate milk price," White said.
"Fonterra's forecast milk payout was cut multiple times from May last year. While dairy farmers face tougher times, consumers usually benefit from the lower prices when supermarkets pay less to the suppliers."
Yoghurt prices rose 14 per cent, coming off specials in late 2018. Cheese prices rose 4.6 per cent, and butter prices rose 2.4 per cent.