Parents can use superheroes to help encourage their kids to eat healthier.
Research by New York-based Cornell University has found children are more likely to consume nutritious produce if they think characters such as Batman and Superman do.
A group of children aged between six and 12 were offered a choice between French fries (227 calories) and apple fries (34 calories).
Only nine per cent picked the healthier option without prompts, while 45 per cent did so when showed 12 photos of real and fictional role models and asked the question: Would this person order apple fries or French fries?.
Brian Wansink, the John S Dyson Professor of Marketing and Director of the Cornell Food and Brand Lab, stated: "Advising a parent to ask their child 'What would Batman eat?' might be a realistic step to take in what could be a healthier fast-food world."
If children make the decision themselves, then they are more likely to continue down a healthy path as they grow up.