At that time, the cost of energy and commodities soared which led to a steep rise in food prices before they eased in 2023.
The increase in prices over the last four weeks is the highest since the beginning of last year.
On average, UK households spend around £5,283 for a year on groceries but this could increase by £275 unless people change what they buy, said Worldpanel, which was formerly known as Kantar Worldpanel.
Chocolate, butter and spreads as well as fresh meat recorded the sharpest rises in the four weeks to 17 July, according to the company, which monitors prices on 75,000 identical products.
At the same time, the cost of dog food, confectionery and laundry dropped.
Mr McKevitt said most people have options when it comes to managing food costs such as buying more own-brands goods from supermarkets, looking for promotions or going to cheaper shops.