What it is and how it works


  • LDL is a type of lipoprotein. A lipoprotein is a combination of protein and lipid.
  • LDL transports cholesterol to the cells of the body.
  • Like all lipoproteins, LDL contains an inner core of cholesterol and an outer shell made of phospolipids and proteins.
  • LDL has low density because the molecules have more cholesterol than protein. In comparison to HDL molecules LDL molecules are bigger.


  • HDL is another lipoprotein in the body.
  • HDL transports cholesterol to the liver from excess in the blood stream.
  • HDL has more protein than cholesterol and fat, so it has a higher density. HDL molecules are smaller than LDL molecules.

Heart Disease Risks

  • Too much LDL in the blood can cause cholesterol to build up in the arteries.                              -Plaque is what blocks the arteries.                                                                                        - This can lead to hardening of the arteries and heart attack or stroke.

How is LDL And HDL Monitored

  • LDL and HDL can be monitored through lipidprotein analysis.
  • Lipidprotein analysis also monitors:                                                                                           - Overall cholesterol                                                                                                                   - Triglycerides

Interpreting Cholesterol tests

How to Change levels of LDL and HDL

Different foods can lower your cholesterol

  • Oatmeal
  • Fish
  • Walnuts and other nuts
  • Olive oil
  • etc.

Exercise can help lower your cholesterol

  • People that are overweight tend to have high LDL levels
  • Exercise can help maintain good weight and decrease LDL and cholesterol levels


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