Ketogenic diets

It seems the world and his wife will sacrifice everything that's nice to eat in the pursuit of health and slimness. At least until the boredom kicks in. “Keto” is the latest craze. So what’s the low down on this super-restrictive diet, where carbs are the enemy and fat is king?
The maker of Keto Breads, allegedly "the world's healthiest bread," claims that all the other bread out there causes autoimmune disease and leaky gut syndrome. The former claim is risible and the latter is "not a recognized medical diagnosis."
Although most nutrition authorities recommend diets high in carbohydrates, some recent, bestselling books push diets very low in carbohydrate and high in protein and/or fat. In Protein Power Drs. Mary and Michael Eades advance a high-protein, very-low-carbohydrate diet. Another author, Dr. Robert Atkins, has developed a new version of his own very-low-carbohydrate diet. Atkins claims that a metabolic state called ketosis an abnormal condition characterized by an excess of metabolic intermediates (by-products) called "ketone bodies" is the key to losing weight. When blood glucose is in short supply, ketone bodies replace it as the main fuel for the brain and certain other tissues.