Cholesterol is a lipid group consisting of sterols, cholesterol is found only in foods of animal origin.

Cholesterol is actually a type of fat in the human body and produced in the liver. Its function is to serve as raw material for the synthesis of sex hormones, bile salts and cell membranes. Substance essential to life, cholesterol can also be harmful when excessive. Indeed, when the rate increases in the blood, it will be deposited on the walls, and reduce the damage diameter is arteriosclerosis. Thus, a high cholesterol increases the risk of myocardial heart, arterial thrombosis and insufficient blood supply. Such as cholesterol circulates in the blood and is united with substances called lipoproteins. These are lipoproteins that determine the two kinds of cholesterol that have distinct effects:

LDL-
HDL-

LDL cholesterol

This is the cholesterol that circulates in the blood united in low-density lipoprotein: LDL means Low Density Lipoprotein. It represents approximately 75% of total blood cholesterol. And this is what cholesterol promotes the formation of arteriosclerosis. LDL is the “bad cholesterol”

HDL cholesterol

This is the cholesterol that circulates in the blood united to high density lipoproteins: High Density Lipoprotein HDL means. Recently demonstrated, it is called the “good cholesterol” and has a preventive effect on atherosclerosis. It is good that his blood level is high enough. Different fatty acids have different actions on cholesterol:

high-cholesterol

-Saturated fatty acids contained in animal fats increase LDL cholesterol and HDL cholesterol.
-Monounsaturated fatty acids found in olive oil and avocado, and decrease LDL cholesterol but slightly increase the HDL cholesterol.
-Polyunsaturated fatty acids in turn are contained in the seed oils and fish and cause the decrease in LDL cholesterol and HDL cholesterol.

Here the proportion of cholesterol content in milligrams per hundred grams food:

* It contains 2300 mg brain
* Yolk contains 1500 mg
* Liver contains 360 mg
* Fat meat contains 300 mg
* Oysters contain 260 mg
* Butter contains 250-mg
* Lobster contains 182 mg
* Fat cheeses contain 150 mg
* It contains 100 mg sausage
* Pork tenderloin contains 96 mg
* Fillet of beef contains 85 mg
* Chicken, lamb contains 75 mg
* It contains 50 mg grouper

Daily needs fat as the World Health Organization (WHO), the lower limit of fat is 33 grams er upper limit is 67 grams (22 grams maximum for saturated fat and 16 grams maximum polyunsaturated fatty acids).