IMHO, ketosis is a dangerous kettle of fish that I personally do not want to actively force my body into.
I've been warned by doctor friends about the strain that your liver goes into when you go into ketosis.
But I don't want to preach about what people should and shouldn't do, as I am not medically qualified to talk with great authority on this.
I've read a bit about it, and ketosis seems to be a false way of losing weight. According to my favorite book
, the rapid weight lose you can get when in ketosis, is mainly water and muscle glycogen. When carbs are no longer being supplied in sufficient amounts by diet, the body uses its carb reserves (glycogen) to fuel muscle contraction ete.
One gram of carbs in the form of muscle and liver glycogen binds 4 grams of water. So when you use up your reserves of glycogen (about 500 grams) in the first few days, you also lose about 2 kgs of water, for a total loss of 2.5 kgs - none of it is fat. When you return to normal eating - you'll gain that water back...
There are all kinds of other bits of information that I've picked up that paint a far from rosy long term health picture for me.
It is for these personal reasons and interpretation that I do not want to go into ketosis.
my 2 cents!
Spang