What are complex sugars?

Complex carbohydrates are made up of sugar molecules that are strung together in long, complex chains. Complex carbohydrates are found in foods such as peas, beans, whole grains, and vegetables. Both simple and complex carbohydrates are turned to glucose (blood sugar) in the body and are used as energy. read more

Sugars contain just one or two of these units and are "simple," while starches and fibers have many units of sugar, making them "complex". Simple Carbohydrates Sugars can occur naturally or artificially in foods, but your body can't distinguish between the sources. read more

Unlike simple sugars, complex carbohydrates, also known as complex sugars, require more work to metabolize. Simple sugars quickly absorb into the bloodstream providing a quick rush of energy, according to Kids Health. read more