Tag: Neuron fuel

The brain, which constitutes only about 2% of the body's total weight, consumes roughly 20% of the body's total energy, with a large portion of this energy fueling nerve cells. This remarkable energy demand is met primarily by a single, critical nutrient: glucose.

The human brain consumes an astonishing 20% of the body's total energy, despite making up only 2% of its weight. Under normal physiological conditions, the answer to "what is the only energy source the brain uses" is unequivocally glucose. This simple sugar is the brain's main and preferred fuel, a dependency so critical that a continuous supply is essential for normal function.