Eating a healthy, balanced diet based on whole foods can help us achieve optimal health throughout life. But knowing exactly what to eat can be confusing when there's so much conflicting advice from books, websites, TV programs, magazines and celebrity chefs. The National Health and Medical Research Council (NHMRC) has released the latest 2013 Australian Dietary Guidelines based on scientific evidence on what we should all be eating. Here's my handy summary to make things easier to digest: