Sainsbury's intensified its promotional activity in November, according to the latest data from the just-food Promo Tracker.

The UK's third-largest retailer offered more deals last month - the only grocer of the four measured by the Tracker to do so, according to data compiled in association with mysupermarket-insights.co.uk.

The percentage of SKUs on promotion at Sainsbury's also increased from 35.2% in October to 38.6% last month.

Asda, the UK's second-largest grocer, ran less promotions in November, although the percentage of lines on offer inched up from 22.55% to 22.56%.

The retailer with the highest percentage of SKUs on offer was Tesco, at 40.3%.

Among the brands, the Reflets de France range sold by Ocado in tandem with Carrefour was offered completely on promotion in November - as was Danone's probiotic drink Actimel. The top three most-promoted brands was identical to October, with Tesco's Goodness For Kids baby food range in third.

Campbell Soup Co.'s eponymous soup brand - sold in the UK through a venture with Symington's - returned to the top five for the first time since June. Snacks brand Pringles made the top five for the first time since February.

For Promo Tracker data from previous months click here.

Supermarket Total number of SKUs Number of Promos % of all SKUs on promo Average saving per promo
Tesco 37683 15189 40.31 £0.87
Asda 28579 6448 22.56 £0.65
Sainsbury's 24296 9367 38.55 £1.16
Ocado 19095 6037 31.62 £0.95
Brand PcntOfPromos AvgSavingPerPromo
Reflets de France 100 £0.35
Actimel 100 £0.54
Tesco Goodness for Kids 96.7 £0.32
Campbell's (Soup & Mixes) 91.9 £0.24
Pringles 91.4 £1.18
Activia 90.4 £0.32
Muller 86.1 £0.39
Lindt 81.7 £0.85
Kettle 79.3 £0.5
New Covent Garden Food Co. 78.9 £0.59
Laverstoke Park Farm 77 £0.53
Tesco Italian 76.9 £0.34
Batchelors 74.7 £0.2
Quaker 73.5 £0.39
Bassett's 71.7 £1.42
Sharwood's 70.7 £0.39
Walkers (Crisps, Snacks & Dips) 70 £0.44
Tilda 68.3 £0.64
Colman's 66.3 £0.35
Whitworths 65.5 £0.33
Category PcntOfPromos AvgSavingPerPromo
Yogurt & Milk Drinks 59.17 £0.51
Chilled Desserts 58.32 £0.35
Crisps 56.5 £0.58
Frozen Pizza & Breads 55.88 £0.57
Yogurts 54.44 £0.32
Frozen Vegetarian 54.39 £0.44
Baby Food & Snacks 53.89 £0.21
Boxed Chocolates 50.11 £1.79
Stock, Sauce Mix & Gravy 47.79 £0.29
Cooked, Prepared Meat & Poultry 47.32 £0.56
Snack Meals 46.08 £0.18
Fresh Soup 45.93 £0.58
Champagne & Sparkling Wines 45.48 £5.24
Fresh Desserts 43.85 £0.41
Block Chocolate 43.72 £0.53
Cheese Snacks 43.37 £0.37
Fresh Vegetarian Food 43.1 £0.71
Dried Fruit 42.83 £0.41
Packet Soup 42.72 £0.26
Pasta Sauce 41.18 £0.49