The Big Question: “Why do we have to eat?” Synopsis: We have to eat, because our parents make us! But seriously, Harrison learns how good, healthy food helps us grow big and strong and smart, why foods taste different between boys and girls, and which junk foods disguise themselves to pretend that they’re healthy. My Great Challenge: How well do you know what’s in your food? Harrison surprises some challengers as they try to guess how much fat and sugar are in their favourite foods. In the Field: Yummy?? Bacon-flavoured popcorn is on the menu, washed down with onion soda. Harrison visits a company that makes flavours and creates some weird ones to share.