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These studies suggest that dietary supplements such as phytosterols, red yeast rice, policosanols, artichoke leaf extracts, and vitamin C can effectively lower LDL cholesterol levels.
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Lowering low-density lipoprotein cholesterol (LDL-C) is crucial for reducing cardiovascular disease (CVD) risk. Various natural supplements have been studied for their potential to lower LDL-C levels effectively. This article synthesizes the findings from multiple research studies on the efficacy of these supplements.
Phytosterols are well-documented for their LDL-C-lowering properties. The DESCO study demonstrated that a daily supplement containing 2.5 g of phytosterols significantly reduced LDL-C levels by 7.8 mg/dL in individuals adhering to a Mediterranean diet. Another study confirmed that a new phytosterol emulsion supplement lowered LDL-C by 10.2% within one month. A meta-analysis also supported the efficacy of phytosterols, showing a significant reduction in LDL-C levels, particularly at doses of 2 g/day or higher.
Red Yeast Rice (RYR) is another effective supplement for lowering LDL-C. RYR contains monacolin K, which is structurally similar to lovastatin, a cholesterol-lowering drug. Studies have shown that RYR can reduce LDL-C levels by 15-34% compared to placebo, making it a viable option for individuals with mild-to-moderate hypercholesterolemia who cannot tolerate statins. Additionally, a combination of RYR, sugar cane-derived policosanols, and artichoke leaf extracts was found to reduce LDL-C by 21.4% over 16 weeks.
Vitamin C supplementation has also been shown to lower LDL-C levels. A meta-analysis of 13 randomized controlled trials found that taking at least 500 mg of vitamin C daily for a minimum of four weeks resulted in a significant decrease in LDL-C by 7.9 mg/dL. Another study highlighted that vitamin C supplementation reduced the oxidative susceptibility of LDL, which is beneficial for cardiovascular health.
Vitamin E has antioxidant properties that can protect LDL from oxidation, a process that contributes to atherosclerosis. A study involving elderly participants found that 100 IU of vitamin E daily significantly reduced the oxidation rate of LDL-linoleic acid, suggesting a protective effect against LDL oxidation.
Functional foods and supplements with LDL-C-lowering effects are increasingly recognized for their role in both universal and care-related CVD risk management. These supplements are particularly beneficial for individuals who are statin-intolerant or prefer non-prescription alternatives. Shared decision-making between healthcare providers and patients is crucial to ensure adherence and optimize outcomes.
Natural supplements such as phytosterols, red yeast rice, vitamin C, and vitamin E have shown significant potential in lowering LDL-C levels. These supplements offer a viable alternative or adjunct to traditional statin therapy, particularly for individuals seeking non-prescription options. Incorporating these supplements into a balanced diet, especially one that follows the Mediterranean dietary pattern, can further enhance their lipid-lowering effects.
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