Simple Carbohydrates
Simple carbohydrates are mainly simple sugars, and they raise blood sugar much faster and usually higher than complex carbs.An example of a simple sugar is the sugar in your sugar bowl. Things like candy, syrups, and soda pop are simple carbs. Fruit and milk are also considered simple carbs, even though they contain vitamins, fiber, and important nutrients that your body needs.
Complex Carbohydrates
Complex carbs are basically starches that contain fiber. Complex carbs are digested more slowly than simple carbs, so blood sugars don't rise as high or as fast.
Foods like brown rice, whole grains, oatmeal, whole wheat pasta and high fiber cereals are complex carbs. Some vegetables, including broccoli, corn and legumes (kidney beans, chick peas), are also complex carbs.
When planning your meals, focus on shifting your carb intake to more complex carbs and less simple carbs. This will help you control your blood sugar levels.
Source:
Dolson L. (2009, March 2). Understanding Carbohydrates - More Complex Than You Think. Retrieved from http://lowcarbdiets.about.com/od/lowcarb101/a/carbintro.htm

