Nutritionists suggest we cut back on salt but it's sodium you'll see listed on food labels and on any recommended daily intakes. So what's the difference and how can you convert sodium into salt? And vice versa?

A standard drink is any drink containing 10 grams of alcohol (or 12.5ml pure alcohol). One standard drink always contains the same amount of alcohol regardless of the size of the glass or the type of alcohol (beer, wine or spirit). A standard drink means:

 Just like yards became metres and pounds became grams, so calories have become kilojoules. Kilojoules are the metric equivalent of calories and have replaced calories in almost all countries. Yet they're very confusing, especially to my US visitors who have always only known calories (lucky for me, I grew up with calories then had to learn kilojoules!)

What is a standard serve?  When nutritionists talk about a "serve of vegetables", exactly how much do they mean?  Is it a cup or a couple of spoonfuls? Check out the official list of standard serves from the 2011 draft of the Australian Guide to Healthy Eating so you know how much is meant.