What value does the ketogenic diet have in improvement of some of the more troubling behaviors seen in children with autism? Although this is a relatively new idea, the history of the diet and autism goes back several decades. Even in the earliest papers written on the diet in the 1920s and 1930s, patients with intellectual disability were described as “brighter” and “more alert” with the use of the ketogenic diet. If we as parents are thinking about classic ketogenic diet for our child with autism but not epilepsy, it would probably have to be the modified Atkins diet or low glycemic index treatment, and with the help of a dietitian familiar with these treatments. Any supplements, probiotics, oils, or other foods would have to be changed to low carb. The authors also strongly advise making sure our child’s autism specialist is involved and set goals determined beforehand.