~ It provides energy, absorbs certain nutrients and maintains your core body temperature. (http://healthyeating.sfgate.com/three-functions-fat-body-3402.html)
* fats help in forming structural material of cells and tissues such as the cell membrane.
* Fats also carry the fats soluble vitamins A, D, E and K into the body and help in the absorption of these vitamins in the intestines.
This is the most essential nutrients becuase it is in every bodily function, and makes up 70 to 75% of your total body weight. It contains more than twice the number of calories than proteins or carbohydrates. It gives the body energy to function. Its a daily requirment for your body.About 98% of dietary fats are composed and turn in to fatty acids. (http://www.editorsweb.org/nutrition/essential-nutrients.htm)