Tag: Brain metabolism

Despite weighing only about 2% of your body mass, the brain consumes around 20% of your body's total energy, making it a major contender for the title of **what organ consumes the most energy?** This reveals a fascinating insight into human metabolism and organ function.

Despite making up only about 2% of total body weight, the human brain at rest accounts for approximately 20% of the body's total oxygen consumption. This illustrates a key physiological concept: cellular oxygen consumption varies dramatically across the body, leading to the question of which cells use the most oxygen to fuel their essential activities.

The human body is a marvel of metabolic flexibility, yet there's a unique and persistent metabolic quirk: the brain's strict preference for glucose as its primary fuel. This distinct characteristic answers the question of **Which organ cannot use fatty acids** directly for energy under normal conditions.