The Claim

PCSK9 promotes the degradation of low-density lipoprotein receptors in the liver, leading to reduced clearance of low-density lipoprotein particles from the bloodstream and elevated circulating levels of low-density lipoprotein cholesterol.

Source: The 60-Year Cholesterol War Is Finally Over

What the research says

Roughly balanced

Support and challenge are close. The picture may shift as more studies come in.

Supports
1score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

A protein called PCSK9 causes the liver to break down fewer 'bad' cholesterol carriers, which means more of it stays in your blood.

See the scientific wording

PCSK9 promotes the degradation of hepatic LDL receptors, thereby reducing the clearance of LDL particles from the bloodstream and increasing circulating LDL cholesterol levels.

What the research says

1 study
  1. Study: Regulation of PCSK9 Expression and Function: Mechanisms and Therapeutic Implications

    The study says that PCSK9 causes the liver to destroy LDL receptors, which means the body can't remove bad cholesterol from the blood as well, leading to higher cholesterol levels. This matches the claim exactly.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.