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.
The softer a fat is, the more unsaturated it is. In general, vegetable and fish oils are rich in polyunsaturates; olive, canola and peanut oil are rich in monounsaturates, and the harder fats -- animal fats -- are more saturated (exception to this last rule are the tropical oils).