For some people diet and lifestyle changes are not enough. High blood cholesterol levels are also linked to genetics. Some people inherit altered genes that cause high cholesterol, and this can usually not be changed by lifestyle or diet.
If you are at risk of coronary heart disease and your LDL cholesterol level doesn’t drop after scrupulous attention to diet, your doctor may recommend medications to force your LDL levels down. However, diet and exercise will still be important, even if you are taking medication. Your doctor may also refer you to a specialist who treats cardiovascular disease.