Diet, genetic predisposition. When the concentration of cholesterol in the blood is too high, many problems, including heart disease, can occur.
Cholesterol is needed by the body in some quantity.
It is manufactured by the liver and responsible for functions such as the production of hormones, bile acid, and Vitamin D . About one quarter of American adults have elevated cholesterol levels. Cholesterol is measured based on its concentration in the blood stream. The most important lifestyle change to help lower cholesterol is to avoid foods that are high in saturated fats. 1 Avoiding most dairy products can also help.