5 ways vitamin C may improve heart health every day
Research links vitamin C to healthier blood vessels, lower inflammation
Vitamin C may do more than strengthen the immune system. Research suggests the vitamin can support heart health by improving blood vessel function, reducing inflammation and helping maintain healthy blood pressure, though experts say it should not replace prescribed medication.
May improve blood vessel function
Vitamin C helps increase nitric oxide production, allowing blood vessels to relax and widen. It also supports collagen production, helping keep blood vessel walls strong and promoting healthy blood flow.
Could help lower blood pressure
Studies suggest vitamin C supplements may modestly reduce systolic blood pressure, particularly in people with hypertension or diabetes. However, researchers stress it should complement—not replace—blood pressure medication and healthy lifestyle habits.
Helps reduce inflammation
Chronic inflammation can damage arteries and increase the risk of heart disease. Vitamin C may lower inflammatory markers linked to cardiovascular problems, supporting healthier blood vessels over time.
Protects against oxidative stress
As a powerful antioxidant, vitamin C helps neutralise harmful free radicals that can damage the heart and blood vessels. It also helps regenerate vitamin E, another antioxidant involved in protecting cardiovascular health.
May support healthy blood clot breakdown
Research suggests vitamin C may help the body break down blood clots more effectively, potentially improving circulation in people with coronary artery disease or type 2 diabetes. More studies are needed to confirm these benefits.
Experts recommend getting vitamin C primarily from foods such as citrus fruits, berries, broccoli and bell peppers. Anyone considering supplements—especially those with heart disease, diabetes or high blood pressure—should consult a healthcare provider first.
