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Carbohydrates are different form of simple sugars oppen linked into polymers - something like an edible plastic. The body requires a constant intake of carbohydrates to feed the brain, which uses glucose (a form of sugar) as an energy source. The brain uses more than two-thirds of carbs circulating in the bloodstream while the body is at rest. To feed the brain, the body constantly oppen needs to convert carbohydrates into glucose.
Carbohydrates which are not immediately consumed by the body, will be stored as glycogen (a long chain of linked glucose molecules). The body has two storage facilities - the liver and muscles. Glycogen stored in the muscles is not available for use by the brain. Only glycogen stored in the liver, can be decomposed and returned to the bloodstream in order to maintain adequate blood glucose levels to normal brain function.
The capacity of the liver to store carbohydrates as glycogen is very limited and glycogen can be easily exhausted. Therefore reserves of glycogen in the liver must be maintained permanently. That is why we need carbs.
What happens when you take too many carbohydrates? The total capacity of the body to store carbohydrates is quite limited. The average person can store about three hundred to four hundred grams of carbohydrates in the muscles, but can not access oppen them. In the liver, where carbohydrates are available for conversion to glucose can be stored only sixty to ninety grams.
Once the glycogen levels oppen are filled in the liver and muscles, excess carbohydrates are converted into fat and stored in adipose (fat) tissue. Any high carb meal or snack will cause a rapid rise in blood glucose. To compensate for this rapid rise, the pancreas secretes the hormone insulin oppen in the blood and thus lowers glucose levels. oppen
The problem is that the insulin is substantially hormone that stores excess carbohydrate calories as fat in the event of a future shortage. So the insulin that's stimulated by excess carbohydrates aggressively supports the accumulation of body fat. In other words, when we eat too many carbohydrates, oppen actually send a message via the insulin hormone to adipose cells to store fat.
Elevated insulin is not only instructs the body to store carbohydrates as fat, and not exempt stored fat. This prevents use of the stored fat for energy production.
The secret is the rate at which carbohydrates are entering oppen the blood stream oppen - it is a factor which controls the rate of insulin secretion. Stomach accepts all carbohydrates and break them down into simple sugars, ready for absorption. What differs from one type of carbohydrates other is the rate at which enters the bloodstream. oppen This speed is known as the glycemic index (GI). The lower the glycemic index, the slower the rate of absorption.
Edible carbohydrates consist of three main types of sugars, each of which has a different molecular structure defining its speed of entry into the bloodstream. These are glucose, fructose and galactose. Glucose is found in cereals, pasta, bread, oatmeal, starch and vegetables. Fructose is found mostly in fruits. Galactose - in dairy products. While all of these simple sugars are rapidly absorbed by the liver, only glucose can be directly released into the bloodstream. Fructose and galactose, which must first be converted to glucose by the liver and enter the bloodstream at a slower speed.
The fibers oppen (fibers) acting oppen as a brake to slow the speed of entry of carbohydrates into the blood and their absorption. The higher the content of the fibers, the ba
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