Heart is one of most important organs of the body and without it we cannot survive. Its primary benefit is to act as pump,which circulates blood to whole of the body through an extensive network of blood vessels. Each of these vessels in turn carries the blood to all the vital organs to supply them with nutrition and Oxygen. This whole system is often reffered to cardiovascular system and is vitally important for our survival. Any problem in this system, such as blood vessel damage or blockage, inefficiency of the heart muscle itself, could lead to serious complications.

Risk factors for cardiovascular problems can of diet and life style related as well as genetic. High cholesterol is one factor which can make this system work inefficiently and lead to complications. Cholesterol is a fatty substance known as a lipid and is vital for the normal functioning of the body. It’s mainly made by the liver, but can also be found in some foods. Having an excessively high level of lipids in your blood (hyperlipidemia) can have an effect on your health.High cholesterol itself doesn’t usually cause any symptoms, but it increases your risk of serious health conditions

Cholesterol is carried in your blood by proteins. When the two combine, they’re called lipoproteins.The two main types of lipoprotein are: high-density lipoprotein (HDL) – carries cholesterol away from the cells and back to the liver, where it’s either broken down or passed out of the body as a waste product; for this reason, HDL is referred to as “good cholesterol”, and higher levels are better low-density lipoprotein (LDL) – carries cholesterol to the cells that need it, but if there’s too much cholesterol for the cells to use, it can build up in the artery walls, leading to disease of the arteries; for this reason, LDL is known as “bad cholesterol”

The amount of cholesterol in the blood – both HDL and LDL – can be measured with a blood test. The recommended cholesterol levels in the blood vary between those with a higher or lower risk of developing arterial disease.

Blood pressure is another risk factor. When your heart beats, it pumps blood round your body to give it the energy and oxygen it needs. As the blood moves, it pushes against the sides of the blood vessels. The strength of this pushing is your blood pressure. If your blood pressure is too high, it puts extra strain on your arteries (and your heart) and this may lead to heart attacks and strokes.

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