The ketogenic diet was first introduced in 1924 at the Mayo clinic. Dr. Russel Wilder found that by putting epileptic patients on a fast, the symptoms became less frequent. The classic diet incorporates a fat to combination of protein and carbohydrates ratio of 4:1. A; high-carbohydrate food sources are eliminated from the diet. These high carbohydrate foods are starchy vegetables, fruits, grains, pasta and sugar.