What is the primary source of energy for the brain?

The primary source of energy for the brain is glucose, which is derived from carbohydrates. The brain relies heavily on glucose for its energy needs, as it does not store energy in the form of fats or proteins like other organs can. Glucose is transported from the bloodstream into the brain cells, where it is metabolized to produce the energy required for various functions such as cognitive processing, memory, and overall neural activity.

While fatty acids and proteins can play significant roles in other bodily functions, they are not utilized as the main energy source for the brain. Additionally, minerals are essential for various biochemical processes and play supportive roles in brain function, but they do not serve as a direct energy source. This highlights the critical importance of carbohydrates, particularly in the form of glucose, for maintaining optimal brain health and function.