Eisenhower, Dwight Eisenhower, Dwight D. Eisenhower, Dwight David Eisenhower, Ike, President Eisenhower(noun) United States general who supervised the invasion of Normandy and the defeat of Nazi Germany; 34th President of the United States (1890-1961)
Our daily food choices resupply the potential energy, or fuel, that the body requires to continue to function normally. This energy takes three forms: carbohydrate, fat, and protein. (See table 2.1, Estimated Energy Stores in Humans.) The body can store some of these fuels in a form that offers muscles an immediate source of energy. Carbohydrates, such as sugar and starch, for example, are readily broken down into glucose, the bodyâs principal energy source. Glucose can be used immediately as fuel, or can be sent to the liver and muscles and stored as glycogen.
Types of Carbohydrates. There are three main types of carbohydrates: starches, sugars and dietary fiber. Starches and sugars are considered the energy-yielding carbohydrates because they are fully digestible and, once absorbed, they provide the body with 4 calories of energy per gram of carbohydrate.