The Ketogenic Diet is a high fat, very low carbohydrate diet that replaces carbohydrates in your diet with lots of natural fats, so the body burns stored fat for energy (ketones) rather than glucose. This metabolic process is called ketosis. The ketogenic diet was introduced over a century ago to treat epilepsy and seizures in children who were unresponsive to medication.

The vegan diet is a 100% plant-based diet that includes only plant foods and foods made from plants.

The Paleo Diet calls for a return to eating as our Paleolithic ancestors did 2.5 million years ago. Paleo proponents believe that our bodies are not genetically suited to the standard modern diet that emerged with farming and made dairy, grains, legumes, and more recently processed and sugary foods, staples of the human diet.