Is the ketogenic diet safe and healthy?

The ketogenic diet (in earlier iterations known as the Atkins diet and the Low Carb High Fat diet) has been vilified for decades by members of the nutrition establishment, because it is pretty much telling people to do the exact opposite of what the establishment is telling them to do. While official diet guidelines recommend cutting down on fat intake, the ketogenic diet instead recommends cutting down on carbohydrate intake. Since cutting down on one of the sources of energy virtually requires increasing intake of the other, the two diets are completely incompatible. The reason proponents of a low fat diet are so against the ketogenic diet is because they believe that fat, and in particular saturated fat, causes heart disease. But this belief has become increasingly hard to maintain over the last couple of decades. In spite of the fact that populations around the world have been dutifully following advice from nutritionists to cut down on fat intake, they’ve actually gotten…