Global food prices were down 1 per cent in December from November.
The U-N's Food and Agriculture Organisation says all the food commodities used in the index fell except for sugar and oils.
Over the full year, the index was down 19 per cent from 2014.
That's the fourth consecutive annual decline.
According to the FAO, abundant supplies, a timid world demand and an appreciating U-S dollar are the main reasons for the general weakness that has dominated food prices in 2015.
The FAO's Cereal Price Index was down 1 point 3 per cent, the Dairy Price Index down 1 per cent and the Meat Price Index down 2 point 2 per cent.
The vegetable oil index was up 2 point 1 per cent and the sugar index was up just over half a per cent.
