Most of the available information on human hippocampal theta comes from a few small studies of epileptic patients with intracranially implanted electrodes used as part of a treatment plan. (en.wikipedia.org)
In fact, in addition to weight loss, the most common side effects in epileptic patients following a ketogenic diet is menstrual dysfunction (5). (bedfordnaturopathic.ca)
In a 1998 survey by researchers at the University of Florida, 10 percent of epileptic patients with companion dogs reported that their dogs seemed to know when they were going to have a seizure. (pbs.org)