A survey of over 30,000 products on Irish supermarket shelves found that shoppers paid 2.8pc more for these goods in the 12 weeks to September 1 compared with the same period in 2023.
Grocery price inflation remained unchanged from the prior 12-week period recorded by Kantar.
It was also down 8.5 percentage points from September last year.
As grocery prices continue to rise, shoppers opted to purchase items that were discounted in Irish supermarkets.
“Shoppers continue to take advantage of promotional offers from retailers with spending on promotions up 9.6pc compared to this time last year,” Kantar’s business development director Emer Healy said.
Consumers were also trying to cut costs by purchasing retailers’ own label ranges which are cheaper than branded products.
Sales of own label ranges rose 4.5pc in the period compared with the same time in 2023 and now hold a value share of 47pc.
Shoppers spent an additional €66.8m year-on-year on these items.
Consumers increased spending on brands in recent weeks as retailers promoted these products in advertising campaigns.
Branded goods sales jumped 8.4pc, with shoppers spending an additional €121m compared with the corresponding period in 2023.
However, more than 60pc of these branded items were purchased on some form of promotion.
As families prepared for the return to school, retailers noted a jump in demand for popular packed-lunch items.
An additional €1.3m was spent on cheese, while an extra €460,000 was spent on bread. Consumers spent an additional €2.1m on biscuits in recent weeks, while spending on chilled ready meals soared by €2.6m as shoppers opted for convenience.
Online grocery sales were up 10.7pc year-on-year, with retailers noting an increase in the frequency of online purchases.
Shoppers spent an additional €18.2m online compared with the same period in 2023.
Kantar revealed that Dunnes has returned to the top of the rankings and holds the largest market share in the Irish market.
Tesco held the top spot in the previous 12-week period.
Dunnes has a 23.6pc market share as shoppers made more regular trips to its stores.
Tesco followed with a market share of 23.5pc.
SuperValu’s market share stood at 19.9pc, the data showed.
Lidl holds a 13.7pc market share, while Aldi’s market share stood at 11.8pc.