In conditions of glucose deprivation, such as fasting or carbohydrate restriction, ketogenesis serves to reduce our needs for glucose. This reduces

The last lesson covered how insulin, glucagon, and allosteric regulators from within the liver ensure that the liver only engages in gluconeogenesis

Since gluconeogenesis is extremely expensive, it has to be tightly regulated so that it only occurs when both of two conditions are met: 1) the liver

Gluconeogenesis is extremely expensive. Three steps of glycolysis are so energetically favorable that they are irreversible. Getting around them

Insulin is commonly seen as a response to blood glucose whose primary role is to keep blood glucose within a narrow range. This view of insulin fails

The pentose phosphate pathway provides a deep look into a stunning array of essential roles for glucose. In it, glucose becomes the source of NADPH,