14 doctors weighed in:
What are LDL & HDL cholesterol?
14 doctors weighed in

Marianne DiNapoli
Obstetrics & Gynecology
10 doctors agree
In brief: Lipoproteins.
Ldl (low density lipoprotein) and HDL (high density lipoprotein) are types of cholesterol.
Ldl is so-called "bad cholesterol" because it increases the risk of heart disease by causing hardening of the arteries/atherosclerosis. Hdl is considered "good cholesterol" since it removes cholesterol from the walls of arteries.

In brief: Lipoproteins.
Ldl (low density lipoprotein) and HDL (high density lipoprotein) are types of cholesterol.
Ldl is so-called "bad cholesterol" because it increases the risk of heart disease by causing hardening of the arteries/atherosclerosis. Hdl is considered "good cholesterol" since it removes cholesterol from the walls of arteries.
Marianne DiNapoli
Marianne DiNapoli
Answer assisted by Marianne Di Napoli, Medical Student
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Dr. Gary Birnbaum
Internal Medicine
2 doctors agree
In brief: What are LDL and HDL
Ldl stands for low denstiy lipoprotein.
Ldl is a particle which carries cholesterol in the blood. When the concentration of LDL particles is elevated, there is more risk of unexpected heart attacks. Hdl is high density lipoprotein. This particle also carries cholesterol. Hdl particles at times, may scoop cholesterol out of blood vessels and bring it to the liver for excretion from the body.

In brief: What are LDL and HDL
Ldl stands for low denstiy lipoprotein.
Ldl is a particle which carries cholesterol in the blood. When the concentration of LDL particles is elevated, there is more risk of unexpected heart attacks. Hdl is high density lipoprotein. This particle also carries cholesterol. Hdl particles at times, may scoop cholesterol out of blood vessels and bring it to the liver for excretion from the body.
Dr. Gary Birnbaum
Dr. Gary Birnbaum
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Dr. Milton Alvis Jr
Preventive Medicine
In brief: Particles vs. Fats
Ldl (low density lipoprotein) ; HDL (high density lipoprotein) are not cholesterol but complex protein particles which transport all fat molecules in water outside cells.
?ed LDL concentrations ?es incidence of cardiovascular diseases by driving atherosclerosis, thus bad. ?ed HDL considered good because they remove fats from cells which need to get rid of fats, including in the walls of arteries.

In brief: Particles vs. Fats
Ldl (low density lipoprotein) ; HDL (high density lipoprotein) are not cholesterol but complex protein particles which transport all fat molecules in water outside cells.
?ed LDL concentrations ?es incidence of cardiovascular diseases by driving atherosclerosis, thus bad. ?ed HDL considered good because they remove fats from cells which need to get rid of fats, including in the walls of arteries.
Dr. Milton Alvis Jr
Dr. Milton Alvis Jr
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