What are carbohydrates, Which kind should you focus on?

Carbohydrates include a wide range of foods that are major energy sources for your body. One pyramid serving is about 70 calories. Most carbohydrates are plant-based. They include grain products, such as breads, cereals and pasta, and certain starchy vegetables, such as potatoes and corn. Which kind should you focus on?

Think of all the carbohydrate-containing foods laid out in a line. At one end are whole wheat, oats and brown rice. In the middle, white flour, white rice, potatoes and pastas. And at the other end are highly processed products — cookies, candies and soft drinks.

The foods in that spectrum incorporate all three kinds of carbohydrates: fiber, starch and sugar. It’s not hard to point to the healthy and less healthy ends — less refined whole grains on one end, highly refined sugar on the other.

The health pros and cons of many items in the middle aren’t so clear. Rice, pasta, bread and potatoes can all shift depending on how they’re processed and served.

Consider, for example, white and whole-wheat (whole-grain) breads. Both begin as nutrient-rich whole grains, as do both white and brown rice. During processing, however, the grain’s bran and germ are refined away, taking with them many of their vitamins and almost all of their fiber. That’s why it’s wise to choose whole-grain breads, pastas and cereals, and to serve brown rice instead of white.

Similarly, the edible skins so often removed from potatoes and sweet potatoes are full of nutrients and fiber. When picking carbohydrates, the key word is whole. Generally, the less refined a carbohydrate food, the better it is for you.