Glucose is the form of sugar that travels in your bloodstream to fuel the mitochondrial furnaces responsible for your brain power. Glucose is the only fuel normally used by brain cells

http://www.fi.edu/learn/brain/carbs.html

Fuels
Your body can extract at least the following three kinds of fuel from what you ingest:

Fatty acids
Glucose
Amino acids

Fatty acids are made from fat. Longer carbohydrates are chopped up into smaller ones, leading to glucose, which is stored as glycogen. Proteins get converted to amino acids. So the conversion of ingredients to fuels is:

Fat -> fatty acids
Fibers -> used for excreting ingredients
Long carbohydrates -> shorter -> glucose
Shorter carbohydrates ('sugars') -> glucose
Proteins -> Amino acids
http://ds9a.nl/metabolism/
Glucose is the form of sugar that travels in your bloodstream to fuel the mitochondrial furnaces responsible for your brain power. Glucose is the only fuel normally used by brain cells

http://www.fi.edu/learn/brain/carbs.html

Fuels
Your body can extract at least the following three kinds of fuel from what you ingest:

Fatty acids
Glucose
Amino acids

Fatty acids are made from fat. Longer carbohydrates are chopped up into smaller ones, leading to glucose, which is stored as glycogen. Proteins get converted to amino acids. So the conversion of ingredients to fuels is:

Fat -> fatty acids
Fibers -> used for excreting ingredients
Long carbohydrates -> shorter -> glucose
Shorter carbohydrates ('sugars') -> glucose
Proteins -> Amino acids
http://ds9a.nl/metabolism/

Glucose is the only fuel normally used by brain cells. ...

Glucose is the form of sugar that travels in ur bloodstream to fuel the mitochondrial furnaces responsible for ur brain power.Glucose is the only fuel normally used by brain cells.Because neurons cannot store glucose,they depend on the bloodstream to deliver a constant supply of this precious fuel.

This blood sugar is obtained from carbohydrates:the starches & sugars u eat in the form of grains & legumes,fruits & vegetables.(The only animal foods containing a significant amount of carbohydrates are dairy products.)

Too much sugar or refined carbohydrates at one time,however,can actually deprive ur brain of glucose–depleting its energy supply & compromising ur brain's power to concentrate,remember,& learn.Mental activity requires a lot of energy.

Your brain is like a car.A car needs gasoline,oil, brake fluid and other materials to run properly.ur brain also needs special materials to run properly:glucose,vitamins,minerals and other essential chemicals.For example,the fuel(energy) for your brain is glucose.u can get glucose by eating carbohydrates or other foods that can be converted to glucose.
Your brain must manufacture the right proteins and fats to do things such as grow new connections or add myelin,the fatty sheath to axons.u do this by digesting proteins and fats in food and using the pieces,that is,the amino acids & fatty acids,to make the new brain proteins & fats.Without the correct amount & balance of particular building blocks,ur brain will not work properly.Too little (deficiency)or too much(overabundance)of the necessary nutrient can affect the nervous system.

Essential Vitamin or Mineral: vitamins and minerals that are needed by the body but are not produced by the body.Therefore,these materials must be taken in as part of the diet.
Lipids(fats): not all fats are bad for you. In fact,some fats are essential for proper brain function.Two lipids important to the brain are the n-6 and n-3 fatty acids.Low levels of

n-3 fatty acids in a diet can cause visual problems especially by affecting the retina. Studies in animals have shown that diets without n-3 fatty acids cause learning, motivation and motor problems and may affect systems that use the neurotransmitters dopamine and serotonin in the frontal cortex. The n-6 fatty acids are also important in proper brain function because they affect neurotransmitter release and they also influence the ability of neurons to use glucose.

source: http://faculty.washington.edu/chudler/nu...