OK, what you are both missing here is that the Newcastle diet is simply a meal replacement plan, plus a plate of healthy vegetables a day. These plans have been around for years. They are not new. People (particularly women) have been following them for years. Giving a diet fancy new name because there has now been a study will not make it more effective long term. It's still the same diet! I did the Slimfast plan a few times (between 10 and 25 years ago) and yes it worked for a while. It was also one of the mistakes I made that got me where I am today. As I said earlier, if the Newcastle diet is a person's first attempt at losing weight of course it will work, but so will any other low calorie diet...the cabbage soup diet for instance. To me the diet industry itself is a major cause of obesity, they fill us with manufactured products which are not good for us. They encourage us to try to be thinner than is natural for us. If there was no diet industry we would need less diets.Good explanation Andrew, it's not difficult to understand why the Newcastle diet works.
No doubt that the Dietitians working on the ND will advise patients on a follow-up diet.
I don't doubt the Newcastle plan works for a while, but health is a long term issue, not a quick fix. The more quick fixes a person tries, the worse their health will be long term. Isn't the long term what we should be focussing on when we have a condition that is with us for life?