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Carbohydrate
There are basically two forms of carbohydrates: simple and complex. The simple carbohydrates consist of sugars, and the complex carbohydrates consist of starches, grains, cereals, and vegetables. All carbohydrates are converted to sugars within the body.
Cholesterol
This is a type of fat (lipid) essential for the human body. It is pearly colored, waxy, and soapy to the touch. Generally, there are two main classes of lipoproteins (lipid-protein combination) high-density lipid (HDL), the "good cholesterol," and low-density lipid (LDL), the "bad cholesterol."
Glucagon
A hormone created in the pancreas to help regulate the blood sugar levels. Glucagon is released when blood sugar levels are low.
Glycemic Index (GI)
It is the measure of how fast a particular carbohydrate (50 grams) is absorbed into the blood as sugar. The standard food used as a reference is either 50 grams of glucose or white bread. It is usually measured in percentage points. A carbohydrate with a GI of 100% turns into sugar just as fast as glucose. A carbohydrate with a GI of 200% turns into sugar twice as fast as glucose. GI does not take into account how much of that carbohydrate is in a particular serving size of a food.
Glycemic Load (GL)
It is the amount carbohydrate in a serving of food multiplied by that food’s Glycemic Index (GI). GL takes into account the GI of a particular carbohydrate and the amount of the carbohydrate in a serving size. A food with a high GL value will have a greater impact on blood sugar and insulin levels, then a food with a low GL value. It gives a fuller and less confusing way for low carb dieters to assess the impact of carbohydrate consumption by simply comparing GL values.
HDL
A type of cholesterol often referred to as the "good cholesterol," since it is involved in transporting the LDL ("bad cholesterol") back to the liver for disposal.
HPLC
High protein/low carbohydrate diet. Our shorthand for all HPLC diets such as Atkins, Protein Power, Sugar Busters, Zone, Carbohydrate Addicts, etc.
Insulin
This is a hormone produced in the pancreas that helps regulate blood sugar among other things. Insulin is released when there is sugar in the blood stream.
Ketones
This is a chemical the body produces when it breaks down fat for energy.
Ketosis
A state where the body is utilizing fat as an energy source. During ketosis, the body produces ketones, which can be measured in the urine using commercially available ketone strips. Although the ketone strips will test for presence of ketones, it cannot tell whether the source of the ketones was from fat ingested or from fat that was stored in the body.
LDL
A type of cholesterol referred to as the "bad cholesterol," since an excess of LDL is responsible for forming plaque around the arteries, which restrict blood flow and harden.
Triglycerides
Another form of lipoprotein similar to LDL.
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