For as logical a group as I perceive HN to be, any nutrition related article reminds me of the simple fact that most people can't assimilate new information whe

For as logical a group as I perceive HN to be, any nutrition related article reminds me of the simple fact that most people can't assimilate new information when it conflicts with previously held mental models. For whatever reason, diet is something we get drilled into our head from the time we're very young. Even though most of it has been thoroughly debunked by scientific studies (cholesterol, the food pyramid, excessive cardio, saturated fat, wheat) people refuse to believe it. Every time, I see people trot out the same arguments (calories in/calories out seems an especially stubborn one). So, my question is this - How do we communicate new science in a way that will change people's minds? Or should I just be content that the next generation might stumble on this stuff through a web search before what they are taught in school firmly takes hold?