The ketogenic diet is a trendy high fat. meaning you could have a deficiency in potassium, sodium, and magnesium, Boehmer explains. All three help prevent cramping, so you may experience some pain. Apr 12, 2018. Most people who start a ketogenic diet fail because of the notorious. Another essential electrolyte is potassium, which regulates heartbeat. The ketogenic diet, also known as keto, is a low carb, moderate protein, and high-fat…