What's been "refined" out of these processed carbohydrates are all the beneficial nutrients that nature originally put into them. The bran, the fiber, and most of the vitamins and minerals have been stripped away, leaving a bland, white, longer-lasting and shelf-stable product. White flour has only 20 percent of the vitamins and minerals and 25 percent of the fiber of the original wheat kernel. That's why a lot of bread products are "enriched" with vitamins and minerals -- they don't contain enough to mention otherwise. Whole wheat flour still contains the hull, germ, and bran of the grain and offers more fiber and nutrients. I look forward to the day when fast-food restaurants offer whole grain buns and fiber-rich side dishes to their customers, instead of the empty carbs that they now push on us so aggressively.
Now that we've talked a little bit about carbohydrates, why don't you take a minute to ask yourself if you might be eating too many of the refined, highly processed variety.
One way to distinguish between carbohydrates that harm us and carbohydrates that heal us is to think about their fiber content. Products that are made out of refined white flour and white sugar usually have very little fiber and are very processed. Fiber-filled carbohydrates are better for you than those with little or no fiber. Fiber provides a barrier for your digestive system -- otherwise the carbohydrates get turned into sugar immediately. Most Americans eat around 12 grams of fiber a day, while the recommended daily intake ranges from 20 to 45 grams. Yet we are overconsuming carbohydrates! Whenever you reach for a box of cereal, a loaf of bread, or any other product made with flour (pastas, etc.), always reach for the brand that lists whole wheat or another whole grain as the first ingredient. And also check the fiber content and go with the one that has the most fiber per serving.