Secrets of Your Supermarket Shop S04E03 - Fats: The Good, The Bad and the Ugly

Sian Williams, Stefan Gates and Nisha Katona take a closer look at the fats and oils people regularly use when cooking. With the help of the Stickley family, Sian exposes the shocking amount of calories hidden in favourite salad dressings. And Stefan travels to Cornwall to visit Europe's only sustainable sardine fishery.