Hi Holly! I think this is a really cool concept, but I can see a potential problem. This app could be harmful to people with eating disorders. Showing what the user's body looks like after eating certain foods can be triggering and make the user not want to eat anything. It's almost like comparing yourself to a model in a magazine. I understand the app is trying to encourage people to eat healthier, but I think showing the physical changes will cause problems. Instead of showing an avatar of the user, you could use cute creatures that the user wants to keep alive. Everyone likes cute things!