Episode 7

Gloria Hunniford, Angela Rippon and Julia Somerville investigate foods that, for whatever reason, have proved controversial. They visit a school that has banned the high-caffeine energy drinks it's feared children are knocking back in dangerous quantities, and discover the surprising results of a test to see how many traces of pesticides can still be found on fruit and veg bought in the supermarket - what's left by the time we eat them?

With sugar coming in for increasing criticism, which of the alternatives on the market are any better? As the team looks into whether any other sweeteners can claim to be healthier, there's a bake-off to see how they compare when used for cooking.