Cereals, ketchup, crisps, pizza, sausages, beef burgers, dairy products and baked beans were among the 32 popular foods which were tested. Researchers began by buying both branded and supermarket value versions of all of the foods from Tesco, Sainsbury’s, Lidl, Marks and Spencer and Waitrose.
When buying supermarket branded food the researchers opted for the most basic range, for example Tesco Value and Sainsbury’s Basics.
Researchers then went on to test the products for their nutritional value and fat, salt, sugar and calorie content, as well as establishing how many calories shoppers were getting for each pound spent.
The results revealed that although branded meat, poultry and fish dishes were nutritionally superior to own branded products...