Complex Carbohydrates

Polysaccharides composed of long, intricate chains of sugar molecules that require significant enzymatic breakdown during digestion. Found in foods such as legumes, whole grains, and starchy vegetables, these carbohydrates provide a sustained source of energy. Their complex structure, often paired with naturally occurring fiber, results in a slower conversion to glucose, leading to a more gradual rise in blood sugar levels compared to simple sugars.

In a clinical setting, complex carbohydrates are preferred over simple or refined versions because they contribute to prolonged satiety and better glycemic control. However, in the context of therapeutic carbohydrate restriction for weight loss, even complex carbohydrates may be limited to induce nutritional ketosis or to lower overall insulin demand in individuals with significant insulin resistance.