Carbohydrates are the most important source of energy for any of our lifestyle. They contain the elements Carbon, Hydrogen and Oxygen. The first part of the name "carbo-" means that they contain Carbon. The second part of the name "-hydr-" means that they contain Hydrogen. The third part of the name "-ate-" means that they contain Oxygen. In all carbohydrates the ratio of Hydrogen atoms to Oxygen atoms is 2:1 just like water. The general formula for carbohydrates is CH2O.
We obtain most of our carbohydrate in the form of starch. This is found in potato, rice, spaghetti, yams, bread and cereals. Our digestive system turns all this starch into another carbohydrate called glucose. Glucose is carried around the body in the blood and is used by our tissues as a source of energy. Any glucose in our food is absorbed without the need for digestion. We also get some of our carbohydrate in the form of sucrose; this is the sugar which we put in our tea and coffee. Both sucrose and glucose are sugars, but sucrose molecules are too big to get into the blood, so the digestive system turns it into glucose.
When we use glucose in tissue respiration we need Oxygen. This process produces Carbon Dioxide and water and releases energy for other processes.
Carbohydrates are essential to proper nutrition. So where you can find them?

Start the day with whole grains. Try a hot cereal, like old-fashioned oats, or a cold cereal that lists a whole grain first on the ingredient list.
Use whole grain breads for lunch or snacks.
Avoid the potatoes. Instead, try brown rice, bulgur, wheat berries, whole wheat pasta, or another whole grain with your dinner.
Choose whole fruit instead of juice. An orange has two times as much fiber and half as much sugar as a 12-ounce glass of orange juice.
Eat beans. Beans are an excellent source of slowly digested carbohydrates as well as a great source of protein.

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