What is LDL cholesterol ?

Cholesterol is a waxy substance and a fat type in your body. Cholesterol is essential for some metabolic acitivities like hormone production or vitamin D synthesis.

Your body produces cholesterol in liver and also you take extra cholesterol with foods. Cholesterol can’t travel in your body on its own. There are 2 lipoproteins that transport cholesterol in body, these lipoproteins are

  • HDL -good cholesterol high density lipoprotein
  • LDL- bad cholesterol  low density lipoprotein

HDL good cholesterol transports the excess cholesterol from tissues to liver , this is the reason it’s called good cholesterol. LDL cholesterol – bad cholesterol carries cholesterol from liver to the tissues.

The LDL – bad cholesterol level is related with cardiovascular diseases risk. High LDL cholesterol increases heart attack and stroke risk. LDL cholesterol generates fatty build ups and plaques in the walls of  arteries.

High LDL cholesterol causes narrowing in arteries and increases heart attack and stroke risk.

ldl cholesterol

Your doctor may recommend you LDL cholesterol blood test or lipid profile test to evaluate your cardiovascular diseases risk. Lipid profile contains other fat types measurement as listed. Here you can see the blood tests and reference ranges in lipid profile.

Lipid profile reference ranges; HDL , LDL , cholesterol, triglycerides

Total cholesterol reference ranges

  • Normal: < 200 mg/dL
  • Borderline: 200-240 mg/dL
  • High: > 240 mg/dL

LDL cholesterol reference ranges

  • Normal: < 130 mg/dL
  • Borderline: 130-159 mg/dL
  • High: > 160 mg/dL

HDL cholesterol reference ranges

  • Normal male: > 40 mg/dL
  • Normal female: > 50 mg/dL
  • High: > 60 mg/dL

Triglycerides reference ranges

  • Normal: < 150 mg/dL
  • Borderline high: 150-199 mg/dL
  • High: 200-499 mg/dL
  • Very high: > 500 mg/dL



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