| Complex carbohydrates
are like time-release capsules of sugar. Simple carbohydrates
are more like an injection of sugar. Complex carbohydrates tend to be in natural foods – and have long chains of sugar molecules that the liver gradually breaks down into the shorter glucose molecules the brain uses for fuel. In natural foods, the cell walls are made of cellulose fiber that resists digestion, slowing the breakdown and the subsequent release of sugars into the bloodstream, kind of like the way a time-release capsule works. Simple carbohydrates are found in most processed or refined foods and some natural foods. These carbohydrates have short-chained sugar molecules and, because they break apart quickly, enter the bloodstream quickly. Sugary foods--including corn syrup, fruit juices, and honey--contain glucose that is absorbed directly through the stomach wall and rapidly released into the bloodstream, almost as quickly as if delivered by syringe. | ||