With all the confusing dietary information available these days, it’s helpful from time to time to get back to a few nutritional basics. Here we look at types of fat, and examine the role of each in our daily quests for healthier eating.
Carbohydrates, proteins, and fats supply 100% of the energy we absorb from food. They are interchangeable in terms of the type of energy each supplies–but fats have over double the energy content: nine calories per gram versus four for proteins and carbohydrates. And they very much differ in how quickly they supply that energy: carbohydrates are the quickest, and fats are the slowest. Because fat is the most energy-efficient form of food, the body stores excess energy as fat. An excess of only 200 calories a day for 10 days will result in a weight gain of nearly half a pound, mostly as fat. This fat is stored in the abdomen and under the skin–but also within blood vessels Blood vessels
Tubular channels for blood transport, of which there are three principal types: arteries, capillaries, and veins. Only the larger arteries and veins in the body bear distinct names.