This can put you in a natural metabolic state called ketosis. (nutritionmayhem.com)
When eating like this, your body enters a metabolic state called ketosis which basically forces your body to burn fats rather than carbs for fuel. (fitnessandpower.com)
When you restrict your intake of carbohydrates you enter a metabolic state called ketosis in which the body produces ketone bodies from fat to use as energy. (mindbodygreen.com)