What is the difference between simple and complex carbohydrate?

The difference between simple and complex carbohydrate starts with the number of sugars in the molecule. Simple carbohydrates carry one or two sugar molecules; complex carbohydrates are built from much longer chains. This difference in structure sets, together, the speed of digestion, the way it shows in blood sugar, and the amount of vitamins, minerals and fiber the food carries alongside it.

Which are the simple carbohydrates?

Those carrying a single sugar molecule are glucose, fructose and galactose; they are known respectively as grape sugar, fruit sugar and milk sugar. Those carrying two sugar molecules are sucrose, lactose and maltose. Sucrose is tea and table sugar, lactose is found in milk and milk products, and maltose in some vegetables and in malt.

The way this group arrives with food splits in two. They are found naturally in fruit and in milk; and in fizzy and still drinks, in some fruit juices, in candy and in desserts they arrive as added sugar. The guideline also defines simple carbohydrates by the name glycemic carbohydrates, because they raise blood sugar quickly.

Where are complex carbohydrates found?

Starch and dietary fiber go into the complex group. Starch is found in grains such as wheat, rye and oats, in dried legumes and in root storage vegetables such as potatoes. Fiber is the shared property of vegetables, fruit, whole grains and dried legumes.

Dried legumes stand apart because they carry both sides at once. Since they are matured seeds, their basic composition is carbohydrate and protein; there is fiber in the outer part of the grain and starch in the inner part. So the same food becomes a source of both starch and fiber.

How do the two part in the body?

Apart from some fiber components, every carbohydrate type is broken down into simple sugars during digestion. So a complex carbohydrate also turns into glucose in the end; the difference is how long that turn takes. When the breakdown is finished, the glucose that appears reaches the cells through the blood and is turned into energy there; this transfer is carried out by the insulin the pancreas releases.

The guideline states that after some foods are consumed a fast rise is seen in the insulin and glucose level, after some a moderate one, and after some a late one. The glycemic index of whole grains, which are unrefined and high in fiber content, is low. So the advantage of complex carbohydrate comes not only from the length of the chain but also from the fiber it carries alongside.

How is total sugar divided?

The guideline writes daily total sugar as the sum of two items. The first is the free sugars found in the food's own structure: those in fruit, vegetables and milk. The second is the added sugars put in during the processing or the preparation of foods. The sum of the two gives the total sugar taken in with the diet.

This distinction explains why the same amount of sugar is judged differently. The fructose in fruit comes together with fiber, vitamins and minerals; the sucrose in a candy comes alone. 99.9 percent of sugar is sucrose, and on its own it only provides energy and carries no nutrient value.

What does the portion measure make clear?

The difference between the two types becomes more useful once it turns into a measure on the plate. The guideline's grain portion equivalents are these: 50 grams, that is 2 thin slices, of bread; 75 grams of cooked pasta; 90 grams of cooked bulgur or rice; about 30 grams of breakfast cereal. The daily portion number and the whole grain share are detailed in the whole grain article.

The second half of the measure is on the vegetable and fruit side. The guideline recommends at least 400 grams, that is at least five portions of fresh vegetables and fruit every day; three of the five portions are vegetables, two are fruit. These two groups together pull the daily share of complex carbohydrate up on their own.

Where does it turn into a mistake?

The first mistake is counting simple carbohydrate as wholly bad and putting fruit and milk into the same bag. The guideline makes the distinction not over the food but over the route the sugar arrives by. The second mistake is counting a food as unlimited because it is complex; carbohydrate taken in excess is first stored as glycogen, and once the stores are full what is left is turned into fat and kept.

The fourth mistake is trusting a single number read off the label. The total carbohydrate amount in a product does not say which type that carbohydrate comes from; the same gram value can come from starch or from added sugar. To see the distinction you have to look at the ingredients list and the sugar line together.

The third mistake is counting fast energy as a fault under every condition. Simple sugars turn into energy in the fastest way and are suited to heavy physical movement; the problem is not in the type but in its not matching the need. You can follow the carbohydrate values of foods from the carbohydrate tab of the nutrition values table, and the daily range from the carbohydrate guide.