Sea Buckthorn for Heart Health & Cholesterol: What the Research Suggests

Last updated: 18 September 2026

Sea buckthorn is one of the more heart-friendly foods you can add to your day. It's been studied for its role in supporting healthy cholesterol and circulation, thanks to a rare full spread of Omega fatty acids — 3, 6, 7 and 9 — plus flavonoids and antioxidants (2025 peer-reviewed review, ScienceDirect). Here's what the research points to, and an honest note on who should check with a doctor first.

Is sea buckthorn good for heart health?

It's one of the few berries with a genuine research base here. Sea buckthorn has been studied for supporting healthy cholesterol levels and cardiovascular function. Think of it as a supportive food within a heart-healthy lifestyle — not a medicine, and never a replacement for anything your doctor has prescribed.

How does sea buckthorn support the heart?

A rare Omega spread — 3, 6, 7 and 9. Omega-3 and Omega-7 in particular are associated with supporting a healthy cholesterol balance.

Flavonoids are associated with supporting blood vessels and healthy circulation.

Antioxidants help protect against the oxidative stress linked to the ageing of the heart and arteries.

Does sea buckthorn help with cholesterol?

This is where sea buckthorn has been studied most. Research has explored its role in supporting healthy cholesterol levels already within the normal range, and in supporting the balance between different types of cholesterol. One important point: if you already have high cholesterol, sea buckthorn is a supportive addition to — never a replacement for — the plan your doctor has given you. Don't stop any prescribed medication.

An honest safety note before you start

Because sea buckthorn can gently support circulation, it may have a mild effect on blood pressure and can act as a natural blood thinner. If you take blood-pressure medication or blood thinners, or you have a heart condition, talk to your doctor before making it a daily habit. See our guide on sea buckthorn safety and side effects for the full picture.

How to drink it

Around 15ml a day, diluted in water, ideally in the morning. Start with 10–15ml for the first week. For long-term heart support, consistency matters far more than dose.

The bottom line

For your heart, sea buckthorn's value lies in its rare Omega spread, flavonoids and antioxidants — all delicate, and all best preserved by cold-pressing the whole berry rather than heating and diluting it. Choose your juice accordingly, and if you're on any heart or blood-pressure medication, loop in your doctor first.

Try Mevva's cold-pressed sea buckthorn juice →

Frequently asked questions

Can sea buckthorn lower cholesterol?
Sea buckthorn has been studied for supporting healthy cholesterol levels, but it isn't a medicine and shouldn't replace treatment. If you have high cholesterol, use it alongside — not instead of — your doctor's advice.

Is sea buckthorn good for the heart?
Its Omega 3, 6, 7 and 9, flavonoids and antioxidants support cardiovascular health as part of a balanced lifestyle. Consult your doctor if you have a heart condition or take medication.

Can I take sea buckthorn with heart medication?
Because it may affect blood pressure and thin the blood slightly, check with your doctor first if you take blood-pressure medicine, blood thinners, or other heart medication.