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Blutwerte · Marker

LDL-Cholesterin

Low-Density Lipoprotein · LDL-C · LDL

Lipide & Herz-KreislaufNüchtern erforderlich
Einheit:
mmol/L
Abbreviation
LDL-C

LDL-C quantifies the amount of low-density lipoprotein cholesterol in the blood, which transports cholesterol to cells.

Reference Ranges

Reference
1.83.4mmol/L
1.8
2.6
3.4
LowNormalHigh
Reference
Optimal
Unit · mmol/L

Fasting is required for accurate measurement; ranges may vary slightly by lab.

Overview

Übersicht

Low-Density Lipoprotein Cholesterol (LDL-C) is a type of lipoprotein responsible for transporting cholesterol to cells throughout the body. Biologically, LDL-C is a critical component of cell membranes and a precursor for steroid hormones and bile acids. It is often referred to as 'bad cholesterol' due to its association with atherosclerosis when present in excess. Clinically, elevated LDL-C levels are a well-established risk factor for cardiovascular diseases (CVD), including coronary artery disease (CAD), peripheral vascular disease (PAD), and cerebrovascular disease (CCVD). Researchers have found that high LDL-C levels contribute to the formation of atherosclerotic plaques, which can lead to major adverse cardiovascular events (MACEs). For athletes and biohackers, maintaining optimal LDL-C levels is crucial for cardiovascular health and longevity. While LDL-C is not directly linked to athletic performance, its management is essential for reducing the risk of cardiovascular complications that could impair long-term health. Researchers observed that LDL-C levels can be influenced by factors such as diet, exercise, and genetic predisposition. Caveats in measuring LDL-C include the need for fasting prior to testing, as recent food intake can affect lipid levels. Additionally, LDL-C measurements can be confounded by the presence of lipoprotein(a), which may require correction for accurate assessment. Time of day does not significantly affect LDL-C levels, but consistent testing conditions are recommended for reliable monitoring.

Klinische Bedeutung

Elevated LDL-C levels indicate an increased risk of atherosclerosis and cardiovascular diseases. Lowered LDL-C levels are generally associated with reduced cardiovascular risk.

Dynamics

Trend Interpretation

Rising Values

Progressively rising LDL-C levels suggest increased cardiovascular risk; re-test in 4-6 weeks if outside optimal range.

Falling Values

Progressively falling LDL-C levels indicate reduced cardiovascular risk, often due to lifestyle or medication interventions.

Re-test Interval

4 weeks if outside optimal range

Etiology

Causes — High & Low

Cause

Elevated Levels

  • Diet high in saturated fats
  • Genetic predisposition
  • Obesity
  • Sedentary lifestyle
  • Hypothyroidism
  • Chronic kidney disease
Cause

Low Levels

  • Hyperthyroidism
  • Malabsorption
  • Liver disease
  • Inflammatory conditions
  • Certain medications
  • Genetic disorders
Protocol

How to Optimize

Lever

Lifestyle

  • Regular aerobic exercise
  • Weight management
  • Smoking cessation
Lever

Nutrition

  • Increase intake of soluble fiber
  • Consume healthy fats (e.g., omega-3)
  • Limit saturated and trans fats
Lever

Supplementation

  • Plant sterols
  • Red yeast rice
  • Niacin

Note:

Consult a healthcare provider before starting any supplementation, especially if on cholesterol-lowering medications.

Testing Guidelines

🍽️Fasting Required
Not Time-Sensitive

Testing Frequency

Annually for healthy adults, more frequently if at risk for CVD

Interfering Factors

  • Recent intense exercise
  • Acute illness
  • Pregnancy

Related Peptides & Hormones

Apolipoprotein B

Directly measures

hormone or peptide

Open Research Questions

Current research suggests that while LDL-C is a well-established biomarker for cardiovascular risk, optimal target levels and reference ranges remain debated, particularly in populations with elevated lipoprotein(a). Researchers have not yet established the precise role of LDL-C in the context of post-stroke cognitive impairment, highlighting a gap in understanding its predictive value in this setting. Additionally, clinical questions remain regarding the synergistic effects of LDL-C with other biomarkers like Lp(a) and hs-CRP on cardiovascular event risk.

27 Research Publications

890

Total Citations

11

Human/RCT

5.7

Avg. Influence

2025

Latest

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#01

The Triglyceride/High-Density Lipoprotein Cholesterol (TG/HDL-C) Ratio as a Risk Marker for Metabolic Syndrome and Cardiovascular Disease.

ReviewInfluence12.0
280
This review discussed the triglyceride/high-density lipoprotein cholesterol (TG/HDL-C) ratio as a potential risk marker for metabolic syndrome and cardiovascular disease. Researchers found that increased plasma triglycerides and decreased HDL-C levels are associated with these conditions, suggesting that the TG/HDL-C ratio may be a valuable predictor of cardiovascular risk.
View on PubMed
#02

Apolipoprotein B and Cardiovascular Disease: Biomarker and Potential Therapeutic Target.

ReviewInfluence12.0
225
This review examined the significance of apolipoprotein B (apoB) as a biomarker for cardiovascular disease. Researchers found that apoB levels provide a more accurate measure of atherogenic lipoproteins compared to low-density lipoprotein cholesterol (LDL-C). The review discusses the ongoing debate regarding the use of apoB in clinical guidelines for cardiovascular risk assessment.
View on PubMed
#03

Potential Biomarkers for Post-Stroke Cognitive Impairment: A Systematic Review and Meta-Analysis.

Meta-AnalysisInfluence6.0
111
This systematic review and meta-analysis evaluated blood biomarkers related to post-stroke cognitive impairment (PSCI). Researchers found that levels of homocysteine, C-reactive protein, total cholesterol, and low-density lipoprotein cholesterol (LDL-C) were significantly higher in PSCI patients compared to those without cognitive impairment. The study suggests these biomarkers could serve as effective indicators for PSCI.
View on PubMed
#04

New Horizons. A New Paradigm for Treating to Target with Second-Generation Obesity Medications.

ReviewInfluence7.0
94
This article discussed a new approach to obesity treatment focusing on weight loss as a means to prevent complications. Researchers highlighted the importance of managing low-density lipoprotein cholesterol (LDL-C) levels as a biomarker in this context, emphasizing that effective weight loss can lead to improved health outcomes.
View on PubMed
#05

High Low-Density Lipoprotein Cholesterol Levels are Associated with Osteoporosis Among Adults 20-59 Years of Age.

HumanInfluence1.0
36
This study investigated the relationship between low-density lipoprotein cholesterol (LDL-C) levels and bone mineral density (BMD) in adults aged 20 to 59. Researchers found a negative association between LDL-C and lumbar BMD, indicating that higher LDL-C levels may be linked to lower bone density. The study suggests that LDL-C could serve as a biomarker for early osteoporosis detection.
View on PubMed
#06

Hypothyroidism, lipids, and lipidomics.

ReviewInfluence1.0
33
This narrative review examined the lipid abnormalities associated with hypothyroidism. Researchers found that elevated thyroid-stimulating hormone (TSH) levels correlate with increased low-density lipoprotein cholesterol (LDL-C) levels, and thyroid hormone treatment can reverse these lipid abnormalities, potentially improving cardiovascular outcomes.
View on PubMed
#07

Effect of Pelacarsen on Lipoprotein(a) Cholesterol and Corrected Low-Density Lipoprotein Cholesterol.

Human
32
This study examined the effects of pelacarsen on low-density lipoprotein cholesterol (LDL-C) and lipoprotein(a) cholesterol (Lp(a)-C) in patients with cardiovascular disease. Researchers found that pelacarsen significantly lowered Lp(a)-C levels and had a neutral to mild lowering effect on LDL-C corrected for Lp(a)-C content. The study suggests that LDL-C corrected for Lp(a) provides a more accurate reflection of changes in LDL-C than traditional laboratory-reported LDL-C.
View on PubMed
#08

Recombinant high-density lipoprotein formulations.

Review
18
This review focused on recombinant high-density lipoprotein formulations as potential therapies for cardiovascular disease. Researchers noted that low-density lipoprotein cholesterol (LDL-C) lowering therapies have limited effectiveness in raising HDL-C levels. The study emphasizes the need for further clinical trials to evaluate the efficacy of novel HDL-modifying therapies.
View on PubMed
#09

Clinical Significance of Electronegative Low-Density Lipoprotein Cholesterol in Atherothrombosis.

Review
18
This review highlighted the clinical significance of electronegative low-density lipoprotein (L5 LDL) cholesterol in atherothrombosis. Researchers found that elevated L5 LDL levels correlate with the severity of cardiovascular diseases. The study proposes that L5 LDL could be a promising biomarker for assessing cardiovascular risk and guiding treatment decisions.
View on PubMed
#10

Lipoprotein(a): A Lipoprotein Whose Time Has Come.

Review
16
This article focused on lipoprotein(a) as an independent risk factor for cardiovascular disease. Researchers noted that despite effective LDL-C lowering therapies, elevated lipoprotein(a) remains a significant risk factor, indicating the need for targeted strategies to reduce its levels.
View on PubMed

Publication Trend

Research publications about LDL-Cholesterin over time

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