"In this instance, by following a very low carbohydrate diet the liver produces ketones from fat, for the body to use as energy." These types of back-and-forth weight fluctuations can contribute to disordered eating, Kizer says, or can worsen an already unhealthy relationship with food. “I think the keto diet appeals to people who have issues with portion control and with binge eating,” she says.
https://www.nutriminimart.com/fitcore-life-keto/