Answer
Complex carbohydrates (complex sugars) are polysaccharides, while simple carbohydrates (simple sugars) refer to monosaccharides and disaccharides. Polysaccharides are larger and take a longer amount of time to break down, so complex sugars tend to release energy more gradually than simple sugars.
Work Step by Step
Whole grains, legumes and starchy vegetables are complex carbohydrates, while fructose in fruits and vegetables, as well as added sugars, are considered simple sugars.