That's nice, but you've said basically nothing. What are the food groups? What's the right proportion? Does it vary with age/ethnicity/nurture? These are pr

That's nice, but you've said basically nothing. What are the food groups? What's the right proportion? Does it vary with age/ethnicity/nurture? These are precisely the questions being examined, so telling people to eat a balanced diet without telling them what that actually is, doesn't help.