I put DH on the CSIRO diet about 2 years ago. He has lost 18kg and has kept it off. We only followed it for dinners, had cereal for breakfast, fruit for a snack, sandwich for lunch, fruit for an afternoon snack and then the CSIRO for dinner.

It took heaps of effort on my part to start with as I'm the sole Cook and shopper - and I had to purge the house of snacks which I then missed as well but I would recommend it - it's done DH the world of good