The right answer is: Storing energy.
Fats and oils (such as olive oil) are often better than their reputation and play a dual role. They constitute a food group and are at the same time a fundamental nutrient. Fats are present in foods of plant and animal origin and provide 9 kcal per gram, twice as much energy as protein and carbohydrates. The degree of lipid saturation remains lower than what has long been accepted.
Olive oil is composed:
* About 99% triglycerides.
==> monounsaturated fatty acid: 55 to 83% oleic (Omega9)
==> polyunsaturated fatty acid: 3.5 to 21%
* The remaining 1% is the minor compounds;
