Sainsbury’s was the only big four food retailer to gain market share during the worst Christmas for grocery retailers in seven years.
Food sales grew 1.7% - their worst rate of growth for seven years - in the four weeks to January 4 while volumes declined 1.2%.
Lower inflation and weak demand were cited by Nielsen as key reasons for grocery’s poor Christmas.
Aldi achieved the strongest growth of the major multiples with sales up 32.8% during the 12-week period.
Tesco’s sales fell 0.6% and Morrisons’ declined 2%. Asda’s rose 0.4% and The Co-op’s 0.3%.
Marks & Spencer’s sales rose 2.8% as it’s 3.3% share of the good market remained static.