Some published research outcomes associated with a Ketogenic Diet include weight loss, increased insulin sensitivity, potential cancer prevention, and the treatment of neurological disorders, as well as negative side effects, including muscle cramps, lethargy, micronutrient deficiencies, hepatic insulin resistance, increase in oxidative stress, decreased production of certain gut microbiota, vomiting, abdominal pain, and constipation [22]. This evidence concerns the gene INS and nervous system disorder.