Cod liver oil for heart health: How omega-3s help reduce inflammation and improve cholesterol

Cod liver oil, derived from the liver of Atlantic cod, has long been celebrated for its heart-protective properties. This nutrient-dense oil is abundant in omega-3 fatty acids, EPA and DHA, along with essential vitamins A and D.

Together, these compounds help reduce inflammation, regulate blood pressure, and maintain optimal cholesterol balance, thereby supporting overall cardiovascular health. Regular intake of cod liver oil may lower triglyceride levels, improve blood vessel elasticity, and reduce the risk of heart disease. With both traditional use and modern research backing its benefits, cod liver oil stands out as a natural, effective supplement for maintaining a healthy heart and circulatory system.

Cod liver oil is a nutrient-rich oil extracted from the liver of Atlantic cod. Traditionally used as a natural remedy for joint pain, immune support, and bone health, it has gained renewed attention for its scientifically proven cardiovascular benefits. Unlike regular fish oil, which is sourced from the flesh of oily fish, cod liver oil specifically contains higher concentrations of vitamins A and D alongside essential omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

According toa study published in the PMC, regular omega-3 supplementation, such as that from cod liver oil, significantly reduced triglyceride levels and improved overall vascular function. The researchers observed that EPA and DHA helped decrease arterial stiffness and inflammation, two key risk factors for cardiovascular disease.

Cod liver oil provides unique heart-protective properties due to its nutritional composition. The key players are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two omega-3 fatty acids shown to benefit the cardiovascular system.Reduces inflammationChronic inflammation is one of the silent drivers of heart disease, contributing to the hardening and narrowing of arteries. The omega-3 fatty acids, EPA and DHA, found in cod liver oil are potent anti-inflammatory agents that help suppress pro-inflammatory cytokines and support the body’s natural healing processes. By reducing inflammation in blood vessels, cod liver oil promotes smoother blood flow, less oxidative stress, and a lower risk of plaque build up, all of which are essential for long-term cardiovascular protection.Balances cholesterolMaintaining a healthy balance between “good” and “bad” cholesterol is key to heart health. Research suggests that omega-3s in cod liver oil can effectively reduce triglyceride levels while increasing HDL (high-density lipoprotein) cholesterol, which helps transport excess cholesterol away from arteries. This dual action improves the overall lipid profile and supports healthier arteries. Supports healthy blood pressureHigh blood pressure puts excessive strain on the heart and blood vessels, increasing the risk of heart attack and stroke. The omega-3 fatty acids in cod liver oil help relax blood vessels, enhance nitric oxide production, and reduce arterial stiffness, all of which contribute to better blood pressure regulation. In addition, vitamin D in cod liver oil may play a supportive role in maintaining optimal vascular tone, especially in individuals with mild hypertension.Enhances blood vessel healthThe health of your blood vessels is crucial for efficient circulation and nutrient delivery. DHA, one of the key omega-3s in cod liver oil, supports endothelial function, the ability of blood vessel walls to expand and contract smoothly. This helps prevent blockages, ensures steady oxygen flow to tissues, and reduces the risk of vascular complications. Furthermore, the antioxidant properties of vitamin A help protect vessel walls from oxidative damage, complementing DHA’s protective effects for a healthier cardiovascular system.

While cod liver oil is safe for most people, it’s important to use it responsibly:

Disclaimer: This article is for informational purposes only and should not be considered medical advice. Please consult a healthcare professional before making any changes to your diet, medication, or lifestyle.Also read | Living with lymphedema after cancer: Know the causes, signs, and ways to reduce swelling and discomfort