Role of dietary supplements in lowering low-density lipoprotein cholesterol: a review

Area of Science:

• Cardiology
• Nutritional Science
• Preventive Medicine

Background:

• Coronary heart disease (CHD) is a leading cause of death, with rising risk factors like obesity and diabetes in young adults.
• Low-density lipoprotein cholesterol (LDL-C) is a primary driver of atherosclerosis, necessitating effective management strategies.
• While statins are effective, some patients have intolerance or prefer non-prescription options for mild LDL-C reduction.

Purpose of the Study:

• To review the scientific evidence for dietary supplements and functional foods that lower LDL-C.
• To identify supplements with proven efficacy in randomized controlled trials (RCTs) for LDL-C reduction.
• To evaluate supplements that initially showed promise but failed to demonstrate significant LDL-C-lowering effects in RCTs.

Main Methods:

• Systematic review of randomized controlled trials (RCTs) evaluating dietary supplements for LDL-C reduction.
• Analysis of scientific literature linking cholesterol levels to atherosclerosis and CHD.
• Assessment of the efficacy and safety of various non-statin, non-prescription LDL-C-lowering interventions.

Main Results:

• Several dietary supplements have demonstrated efficacy in lowering LDL-C in rigorous clinical trials.
• A subset of supplements, despite initial interest, did not show statistically significant LDL-C reduction in RCTs.
• The evidence supports the use of specific supplements for individuals seeking to manage LDL-C levels, particularly those who cannot tolerate statins or desire milder reduction.

Conclusions:

• Dietary supplements represent a viable option for managing LDL-C and reducing CHD risk in specific patient populations.
• Evidence-based selection of supplements is crucial, as not all purported LDL-C-lowering agents are effective.
• Further research may elucidate mechanisms and identify novel, evidence-backed supplements for cardiovascular health.