For starters, Ketogenic Diet? For dogs and cats?
Yep! You read that right. If you are new to what the Ketogenic diet is, I will summarize it for you quickly here. The body can run on two different kinds of energy; Glucose, which is blood sugar and Ketones, which is the energy molecule from fat. The body can use these for energy, but when both energy forms are given through the diet, the body has to prioritize which gets dealt with first, which is always glucose.
When the body has sugar molecules to handle, it needs to secrete insulin to handle the sugar load. Insulin is an extremely inflammatory molecule as it forces glucose to be stored in adipose tissue(aka fat cells which adipose is actually an organ!) and holds onto it as body fat. When the body has a constant intake of either simple sugar or complex sugars, it has to deal with the glucose load first. No matter what.
When the body consumes fats, it gets digested a bit differently and doesn't have an effect on insulin at all. This allows the body to manage and maintain a stable constant level of blood glucose for the few body processes that need blood sugar while the rest of the body runs on ketones.
A common misunderstanding is that the body can only get blood sugar from dietary sources, which is untrue. The body has a process called Gluconeogenesis, which is done in the liver to create new blood glucose molecules. In fact, the body uses a specific molecule called Glycogen and not glucose coming from dietary sources directly.
Glycogen is made with a few ingredients;
-Amino acids from protein from the diet or if dietary protein is insufficiently available the body will use its own muscle,
-Glycerol which is part of a triglyceride molecule from either dietary fat or body fat
-Both Pyruvate and Lactate molecules created by the breakdown of glucose during energy metabolism that can be joined back together to re-create glucose. In short, it's always recycled in the body.