Generic brand J"). In addition to price and nutrition, evidence suggests that quality is equal to, if not better than, established brands. In the 2007 Whisky Bible several supermarket single malts were rated higher than top-brand distilleries, with Tesco having the highest rating own-brand. Rather than offering a single own-brand alternative, supermarkets have in recent years introduced 'premium' and 'value' ranges offering varying quality and price. Some supermarkets advertise the quality of their premium own-brands for example Sainsbury's television commercial featuring celebrity chef Jamie Oliver. Value supermarket brands are sold at considerably less than known brands, sometimes even below cost price, to
Celebrity chef A 2012 paper published in the "BMJ" found that recipes in top-selling books by television chefs (Nigella Lawson, Hugh Fearnley-Whittingstall, Jamie Oliver and Lorraine Pascale) were less healthy than supermarket ready meals. Neither ready meals nor the chefs' recipes met national or international recommendations for a balanced diet. Celebrity chef A celebrity chef is a kitchen chef who has become famous and well known. Today celebrity chefs often become celebrities by presenting cookery advice and demonstrations via mass media, especially television. Several chefs have been credited with being the first celebrity chef, among them historically Bartolomeo Scappi and Marie-Antoine Carême.