Cholesterol is theoretically known as lipids or fats. It looks like a waxy powder that looks like candle wax shavings. It is pale yellow in color. Each and every animals require cholesterol to survive. Lipids provide chemical energy as fuel for the cells that construct our body. And it is responsible for the protective shell or covering of cells. It is also essential for digestion as well as absorption of nutrients from food.

Cholesterol is vital for our sex hormones, testosterone and estrogen, and for vitamin D. Cholesterol is so crucial that our body regulates it so closely that if you did not eat adequate dietary cholesterol, your body would make all it wants on its own. Your liver has the ability to turn fats, sugars and proteins into cholesterol for its requirements.

Dissimilar types of Lipoproteins.

Your bloodstream is the vehicle that delivers cholesterol and other lipids to each cell in the body. Since lipids and blood don't easily mix properly, the body knows to enfold protein around cholesterol particles making it easy to flow through the bloodstream. This is where the term lipoprotein gets its name. Your bloodstream carries many dissimilar sizes of lipoproteins which are grouped based on the density or fat composition. More fat equals lower density. Low fat and higher protein indicates higher density. There are actually 4 dissimilar fat containing particles in the blood. HDL or high density lipoproteins have the least total of fat (and triglycerides) and the most protein. The largest and least dense is somewhat named as chylomicrons that contain the most fat; specially triglycerides. The other 2 are low density lipoproteins or LDL and VLDL or very low density lipoproteins. Most of the fat from our food and the non-cholesterol fat in our bloodstream is triglycerides. Triglycerides are made up of three fatty acids and glycerol, an alcohol. Triglycerides are vital for our health and supplies a large amount of the energy our tissues need, but too much of a good thing, similar to cholesterol, can be dangerous to your circulatory health.

How LDL is created

Because triglycerides are removed from VLDL and chylomicrons, they become smaller and denser. Ultimately all that leftover is the protein and cholesterol and a tiny amount of triglyceride. The liver cleans out the chylomicron and recycles any remnants unlike VLDL which even after it has lost its triglyceride components, carries on to circulate. VLDL continues to change and finally ends up as LDL particles. LDL carries the most of our cholesterol. Practically all cells in the body can use LDL for their energy requirements. However there is typically more LDL in the bloodstream than is required and the liver must clear the surplus from the blood. It may use it for more bile acids for digestion or as new lipoproteins. If the liver is not able to sustain with the extra LDL, it ends up being deposited in places it does not belong.

HDL, the Savior

High density lipoproteins are identified as the "good" cholesterol and for valid reasons. HDL is even made in the liver and intestines but it is very different than LDL. There is a maximum concentration of protein and little fat in HDL. The two main roles of HDL are to provide chylomicrons and VLD the protein component that allows the liver to know they should have their fat removed. HDLs also act as scavengers and collect extra cholesterol from blood vessel linings as well as other areas to be transported to the liver to be disposed of.

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