Researchers have found that diners make more healthy food choices when told exactly how many much exercise they would need to do to burn off their meal. Those given no information picked dishes that averaged 1,020 calories each. Those that were told how many miles they would need to walk to burn off their meal ate just 826 calories in comparison. It’s an interesting idea but personally I am more likely to look at the menu and think if I go for a 20 minute run later I can probably manage that bit of chocolate cake.