What organ serves as the major metabolic center of the body?

The liver serves as the major metabolic center of the body due to its critical roles in numerous metabolic processes. It is involved in the regulation of carbohydrate, fat, and protein metabolism, making it essential for maintaining overall metabolic homeostasis.

One of its key functions is gluconeogenesis, where the liver produces glucose from non-carbohydrate sources, which is vital for maintaining blood glucose levels during fasting or low carbohydrate intake. Additionally, the liver is responsible for the metabolism of fats, converting them into fatty acids and molecules that can be used for energy.

The liver also plays a crucial role in protein metabolism, including the synthesis of albumin and clotting factors. It helps to process and detoxify various substances, including drugs and alcohol, transforming them into less harmful compounds for excretion.

Furthermore, the liver stores essential nutrients, such as vitamins and minerals, and regulates their release into the bloodstream as required, further emphasizing its role as a metabolic hub in the body.