UK shoppers stocked up on mouthwash, shoe polish and hair products as households were allowed to socialise again.
New data from analytics company Kantar indicates that people have begun to return to their pre-pandemic buying habits, making more regular trips rather than a big weekly shop.
Overall supermarket sales were down slightly compared to a year ago when the first wave of Covid-19 saw panic buying of essential items.
Sales in the 12 weeks to 16 May dipped 0.4 per cent to £31.3bn but remain £3.8bn higher than before the pandemic.
Co-op and Iceland supermarkets endured the biggest sales slump, with Lidl and Aldi enjoying the largest rises.
Fraser McKevitt, head of retail and consumer insight at Kantar, said: “As lockdown eases, people are returning to more normal habits and we can see that reflected in grocery sales.
“Many of us this time last year were eating all our meals at home and we bought extra food and drink as a result.
“Now we're seeing take-home grocery sales dip versus 2020 as people are able to eat in restaurants, pubs and cafes and can pick up food on the go again, grabbing a sandwich, for example, while they’re out and about at the weekend.”
Shoppers also felt more confident heading to stores again, with 58 million more visits to supermarkets compared to May last year. The biggest growth was seen in London, where trips were up by a quarter.
The average basket size per shop has fallen for three consecutive months to £22.82, the lowest level since before the pandemic and restrictions hit.
Online grocery shopping also fell from 13.9 per cent of total spend in the sector to 13.4 per cent – although it remains higher than before the crisis and the number of customers heading to independent and convenience stores also dropped.
Additional reporting by PA