2011年5月2日星期一

Carbohydrates & Blood GlucoseOverview

Overview
Carbohydrates are one of the three classes of macronutrients -- the others are proteins and fats. Humans need macronutrients in relatively large quantities to provide for cellular energy needs and to serve as the building blocks for functional and structural molecules in the body. When you consume carbohydrates, you affect your blood glucose level, which has several ramifications.

Carbohydrates
Nutritional carbohydrates are, TERA Gold in general, made up of one or more monosaccharides, where a monosaccharide is a single sugar ring. The most common and ubiquitous of the monosaccharides is called glucose, a sugar ring consisting of six atoms of carbon, 12 atoms of hydrogen, and six atoms of oxygen. Both sugars, like table sugar, and starches, found in grains and vegetables, fall into the category of carbohydrates.

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Sources of Glucose
Because all carbohydrates that you consume are made up of monosaccharides, and because glucose is by far the most common of the monosaccharides, most of the carbohydrates you eat end up providing you with a source of glucose. Starch is made up of long chains of glucose molecules; for instance, and when you consume starch, enzymes in your digestive tract break the glucose molecules apart from one another. Similarly, the sugars you eat almost all contain glucose.

Blood Glucose
After you consume a carbohydrate and your digestive enzymes separate the monosaccharides from one another, RIFT Platinum your intestine absorbs the monosaccharides into the bloodstream. This increases the concentration of glucose in your bloodstream. Glucose in the blood, called blood sugar, has a number of effects upon your body. For instance, as your blood sugar goes up, your pancreas releases the hormone insulin, which signals cells to take up glucose.

Cellular Uptake
Once cells take up glucose, they can burn the sugar for energy, convert it to fat or store it for later use in the form of the carbohydrate glycogen. rift gold A relatively constant blood sugar level helps ensure that all your body cells have regular access to this important source of energy. Cells in the brain, for instance, are particularly sensitive to drops in blood glucose and quickly become energy-deprived.

Fat Storage
Interestingly enough, Rift Gold if your blood sugar goes up too quickly, this can lead to excess fat storage. Sources of very concentrated glucose, including foods with added sugars or starchy foods that don't contain much protein or fiber, lead to rapid increases in blood glucose. This causes the body to send a signal to the cells that encourages them to take up blood glucose and store it as fat. If you're trying to avoid gaining extra body fat, it's best to avoid very sweet or starchy foods that don't contain much protein or fiber.

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