In case you're not familiar with a keto or ketogenic diet, it simply means that instead of using glucose as fuel, your body burns fat instead. (insonnetskitchen.com)
At the same time, other tissues in the body decrease their use of glucose as fuel. (bodybuilding.com)
There is no doubt the lower your carbohydrate consumption, the sooner your body stops relying on glucose as fuel. (myketokitchen.com)