Am I being daft? Carbs affect ketosis, if you're in ketosis then you are burning fat. Surely if you are burning fat then you are losing weight? So coming out of ketosis is going to affect your weight loss???
Ketosis isn't what causes the big losses on a VLCD it's down to the calorie deficit. Ketosis helps with things like hunger etc but when you're on a VLCD there's really nothing else to be burned off apart from fat. I'm sure someone will explain it better but it's possible to lose just as much weight not being in ketosis.
I actually thought it was a mix of the low cal and low carb... when you're in ketosis, ketones are produced and this makes your body use the fat we have as fuel, so in effect your body has switched from a carbohydrate burning engine to a fat burning engine.
You would obviously loose weight by eating low cal no matter what you ate, but the carbs definitely paly a huge part in it, if ou started eating carbs you'd come out of ketosis and your body would switch again, and stop using the fat you have as the source but the carbs.
It is ketosis that creates the big losses,you can get into ketosis from either a low carb diet or a low calorie diet, a vlcd does the latter.
Both diets reduces the amount of carbohydrates in your diet, carbohydrates are used for energy and for storing- when stored, they turn into sugars (glucose) which then become fats. When the body starts to consume less carbohydrates, ketosis starts to occur and the body begins to use the fat stored in the body for most of its energy needs.
This is the same principle as to why both Atkins and Exante can be used for great weight loss.
I think maybe people who seek to lose weight get too involved in which diet gets the best results...If you are losing weight and feel happy about what you are eating does it really matter if it takes you 2 weeks longer to reach your goal....find the one that works for you....I am unable to burn off a lot of calories so always knew that it would have to be a drastic diet for me...also I was not prepared to live on green leaves or cardboard tasting slices for 2 years ...what a life that would be....I do sometimes have to add a bit of protein but whatever it makes it palatable for me and am able to see myself keeping to the drastic routine for as long as necessary...It is working really well and I think its....stick to the 3 a day if at all possible and try really really hard not to have to deviate....but if you do ,,whatever it may take you another week or so but you will be happier on the journey ....and whats most important you will keep going....
That's my understanding too. You'll lose with or without being in ketosis but if you chose to eat 600 calories of carbs on a vlcd then you'd burn the carbs off first before moving on to fat whereas if you're in ketosis you only have fat to burn off.