Inclusion: over 18 years of age, at least weekly seizures (or 4 per month), tried at least 2 medications for your seizures, have email and fax access, are not very underweight or have high cholesterol, have not had status epilepticus (seizure lasting over 30 minutes) in the past 6 months, and have not tried the Atkins diet before or the ketogenic diet within the past year. All patients will need to have a local primary care doctor or neurologist willing to be available in case of emergencies. You and your local physician both need to speak and write in English and patients MUST be in the United States to participate. The patient (NOT a caregiver) must be the person to email the investigators - a family member cannot be the contact person.