Which metabolic process will NOT occur in the post-absorptive state?

In the post-absorptive state, the body is in a phase where it relies on stored energy sources due to the absence of recently ingested nutrients. During this state, metabolic processes shift to mobilize energy reserves to maintain blood glucose levels and supply energy for ongoing physiological functions.

Lipogenesis, which is the process of converting excess glucose or fatty acids into fatty acids for storage as fat, is primarily active during the absorptive state, when nutrients are plentiful and energy storage is favored. In the post-absorptive state, the demand for immediate energy and the need to maintain blood glucose levels override any processes geared toward storing energy as fat. Instead, the body focuses on utilizing stored fat and glycogen to meet its energy requirements.

In contrast, glycogenesis, glycogenolysis, and lipolysis are processes that occur in the post-absorptive state. Glycogenesis is the formation of glycogen from glucose, which is less common in this state as energy needs are directed towards glycogenolysis (the breakdown of glycogen to glucose) to provide an immediate energy source. Lipolysis, the breakdown of stored fats into free fatty acids and glycerol, is active to supply energy, particularly when glucose reserves are low.

Thus,