It's healthier in that it encourages using more raw ingredients and cutting out all the preservatives and other junk that go into pre-prepared food. For example, it is super easy to make spaghetti sauce, so no need to buy the jars that are full of salt and sugar. You can make your own mayonnaise, jam, juice, sauce... the list goes on. You can make icing sugar from raw sugar, so you can avoid all the bleaches they use in icing sugar. You can mill your own flour. Grind your own coffee beans. Mince your own meat... You can know exactly what is going into all your food.
Steaming with the varoma adds to the health benefits too. I haven't tried it yet - but you can steam an entire chicken in the varoma, have all your vegies around it...

I guess one of the big points for me was that because it is so quick and easy I am eating better. I'm not tempted to go and get take away, etc because it is so easy (and there's very little cleaning involved).

But you can make lots of other yummy, naughty things in it too...