Shop price inflation slowed in August to 2.7% compared to 2.8% in July.
The rate of non-food price inflation were up 1.4 year-on-year, compared to 1.3% in July, the BRC-Nielsen Shop Prince Index showed.
BRC director-general Stephen Robertson said: “”For the second month in a row a fall in overall shop price inflation can be put down to food inflation slowing.
“Global commodities, such as wheat, have dropped from the peaks they reached earlier in the year, though costs remain high.”
He said that the intensity of competition between retailers means consumers are not having to bear the full burden of food price inflation.