No diet will remove all the fat from your body because the brain is entirely fat. Without a brain, you might look good, but all you could do is run for public office.  - George Bernard Shaw

Okay, your brain is not exactly all fat, but did you know that your brain is 60% fat and that every cell in your body needs fat, including the membrane (the fatty layer that surrounds each cell)?  Currently, only two fatty acids (if you don't know what this means just know it is fat that comes from fatty fishes, egg yolks, and more) are essential for humans...