At the time Umbach was in Afghanistan, about a decade since US-backed forces captured Mazar-e-Sharif, most people's lives had regained some sense of normalcy. Men were back to their jobs as farmers or factory workers, and girls could go to school.
Dietary fats and oils. Dietary fats and oils are the most concentrated form of energy as they yield 9 calories/g, whereas, carbohydrates and proteins yield only 4 calories/gm. Nuts and oil seeds are good sources of fat. Beside rich in energy, dietary fats are incredible sources of essential fatty acids, vitamin E in addition to act as the transport vehicle for fat-soluble vitamins/hormones. There are two types of dietary fats, visible and non-visible fat.
Unsaturated fats are those that have one or more double bonds in their fatty acid chains. Made up of two kinds of fats, monounsaturated and polyunsaturated, these fats provide slightly fewer calories than saturated fats and somewhat less energy. Unsaturated fats are in liquid form at room temperature. Polyunsaturated fats also contain Omega-3 fatty acids, an essential fatty acid that your body cannot make on its own, but one that is necessary to maintain a healthy body.