Alex123 wrote:Mkoll wrote:Yes, the brain is mostly made up of fat.
Yes, and please tell me from which kind.
Triacylglicerides and phospholipids.
Alex123 wrote:Mkoll wrote:The body can make fat from carbohydrates
Human body? Where did you find that?!!
Glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation make up cellular respiration. This is the process that mitochondria, the "power plants" of cells, use to generate energy. Glycolysis turns glucose (a simple sugar that your body can get from metabolizing carbohydrates) into pyruvate which is oxidized into Acetyl CoA which then goes to the citric acid cycle. That Acetyl CoA can also be used to make fatty acids.
"Lipogenesis is the process by which acetyl-CoA is converted to fatty acids. The former is an intermediate stage in metabolism of simple sugars, such as glucose, a source of energy of living organisms. Through lipogenesis and subsequent Triglyceride synthesis, the energy can be efficiently stored in the form of fats. Lipogenesis encompasses the process of fatty acid synthesis."
-wikipedia entry for 'lipogenesis'
The only fatty acids that humans need to actually ingest because our bodies can't synthesize them are the two kinds of essential fatty acids (EFAs): omega-6 (linoleic acid) and omega-3 (alpha-linolenic acid (ALA)). Both of these can be found abundantly in plant foods.