Conversation so far:
What is the keto diet?
The ketogenic diet is a high-fat, adequate-protein, low-carbohydrate diet that in medicine is used primarily to treat difficult-to-control epilepsy in children. The diet forces the body to burn fats rather than carbohydrates.
Why was keto diet originally developed?
His trial on a few epilepsy patients in 1921 was the first use of the ketogenic diet as a treatment for epilepsy. .
What is ketosis?
Ketosis is a normal metabolic process. When the body does not have enough glucose for energy, it burns stored fats instead; this results in a build-up of acids called ketones within the body.
What is paleo diet?
The Paleolithic diet, Paleo diet, caveman diet, or stone-age diet is a modern fad diet requiring the sole or predominant eating of foods presumed to have been available to humans during the Paleolithic era.

Question: What do they have in common
Self-contained rewrite: What do paleo diet and keto diet have in common?