Food prices fell 0.6% in April, the first monthly fall since December.
A 2% drop in fruit and vegetable prices was the largest contributor to the decrease.
This was mainly due to a 54% fall in kiwifruit prices as the fruit comes into season in April and May.
The cost of chicken dropped 3.4% and fresh milk was down 1.5%.
Restaurant and ready-to-eat meals was the only category measured by Statistics New Zealand that rose during the month.
The annual rate of food price inflation fell for the third consecutive month to 7.6% for the year to April, down from 9.5% at the beginning of the year.