I suggest you read the detailed information on the newcastle diet, complete with the suggestions for monitoring at your local surgery, and the other advice on added fats and veg.
I'm afraid i don't have the links to the correct information, but i know some people who do.
@Pipp @AndBreathe
There has been a lot of recent discussion on the boards about the ND, and it worries me how many people seem to be making it up as they go along, skipping veg, not eating the added fat, and not getting medical approval and monitoring.
Sorry if i sound pedantic. But i have done several very low calorie diets, and i really wish i had known then, what i know now. They have affected my metabolism for years. Professor Taylor's information is brilliantly helpful, and includes several caveats and explanations as to why his protocol is designed the way it is.
Good luck, but please make sure you have all the information you need.