What is the composition of simple carbohydrates?

Simple carbohydrates are primarily composed of disaccharides and monosaccharides. Monosaccharides are the simplest form of carbohydrates, consisting of single sugar units such as glucose and fructose. Disaccharides are formed when two monosaccharides are joined together, examples being sucrose (table sugar) and lactose (milk sugar).

This classification highlights the straightforward structure of simple carbohydrates, contrasting them with more complex forms like polysaccharides, which involve many sugar units linked together. The simplicity of the composition in monosaccharides and disaccharides is what allows them to be easily and quickly absorbed by the body, providing immediate sources of energy.