NETA Personal Trainer Practice Exam 2025 - Free Personal Trainer Practice Questions and Study Guide

Complex carbohydrates are referred to as polysaccharides because they are made up of long chains of sugar molecules. These chains can contain hundreds or thousands of glucose units linked together and include substances such as starch, glycogen, and cellulose.

Polysaccharides provide a slow and steady release of energy since they take longer to break down compared to simple carbohydrates, which consist of single or double sugar molecules. This slower digestion allows for prolonged energy availability, making complex carbohydrates an essential part of a balanced diet, especially for those engaged in regular physical activity.

Other types of carbohydrates, such as simple carbohydrates and sugars, consist of shorter chains or individual sugar molecules, leading to quicker digestion and a rapid spike in blood sugar levels. Fiber, while also classified as a carbohydrate, refers specifically to the indigestible parts of plant foods that aid in digestion and do not provide energy in the form of calories.