In the absence of carbs and glucose, your body goes into survival mode and starts burning fat for energy in the form of ketones. (theslowcook.com)
This dietary combination aims to shift the body's metabolism away from burning sugar and carbohydrates as fuel to actually burning fat in the form of ketones that are manufactured in the liver. (mindbodygreen.com)
Once they have been depleted from your system, your metabolism uses body fat instead of in the form of ketones. (gymjunkies.com)