I don't know much anything about this diet myself, but a non-POIS sufferer suggested it to us on NSF and I thought I'd just paste what he wrote over here since I don't remember any discussion of it here. The wikipedia page says the diet is pretty effective for seizures and that it shows some promise for things like alzheimers and parkinsons.
Minerva - "I was just reading through this thread because I wasnt sure what it was about. Not all of it mind. Can I offer a suggestion? Have any of you tried a ketogenic diet?
A lot of the symptoms you describe: itching, rashes, low b nutrients are exactly what happen to me when I eat grains (I have liver disease-cirrhosis), either treatment or the cirrhosis itself has caused numerous digestive problems, most of which have been alleviated with a ketogenic diet.
Anyway-just a thought you guys seem quite clued up on nutrition. Please be careful with those herbs mixed with meds though......"
http://www.thenakedscientists.com/forum/index.php?topic=6576.msg403553#msg403553 First paragraph of the wiki describing it: "The ketogenic diet is a high-fat, adequate-protein, low-carbohydrate diet that in medicine is used primarily to treat difficult-to-control (refractory) epilepsy in children. The diet forces the body to burn fats rather than carbohydrates. Normally, the carbohydrates contained in food are converted into glucose, which is then transported around the body and is particularly important in fuelling brain function. However, if there is very little carbohydrate in the diet, the liver converts fat into fatty acids and ketone bodies. The ketone bodies pass into the brain and replace glucose as an energy source. An elevated level of ketone bodies in the blood, a state known as ketosis, leads to a reduction in the frequency of epileptic seizures."
I think some recent studies have suggested that high blood pressure and heart disease might be caused by inflammation of blood vessels and not by cholesterol as we've thought so perhaps our society has restricted our consumption of fats too much. Of course that's completely different to the level this diet takes it to. I probably won't be trying this any time soon, but it's an interesting bit to know.