Hawthorn Berry

Traditional heart tonic providing cardiovascular support through improved circulation and heart muscle function

Scientific nameCrataegus monogyna FormulaVarious flavonoids and oligomeric procyanidins Molecular weightVariable compounds g/mol CASVarious natural compounds

70 absorption score

8 safety / 10

25 USD per month

5 documented interactions

Check it against something

Evidence level B

Hawthorn Berry with:

78 out of 100

Works better together Compatible. Timing differs, so follow each supplement's own window.

Check it against your whole stack →

What it does

mechanism and evidence for each claim

Heart function and circulation support

Improves heart muscle contraction and overall cardiovascular function

Increases cardiac output and improves coronary blood flow Evidence A-grade 4-12 weeks

Blood pressure regulation

Helps maintain healthy blood pressure levels

Vasodilation and improved vascular function Evidence B-grade 6-16 weeks

Antioxidant protection for heart

Protects cardiovascular system from oxidative damage

Flavonoids and procyanidins provide antioxidant protection Evidence A-grade 2-8 weeks

Improved exercise tolerance

May enhance exercise capacity and reduce fatigue

Better cardiac output and oxygen utilization Evidence B-grade 6-12 weeks

Cholesterol and lipid support

May help maintain healthy cholesterol levels

Antioxidant protection and improved vascular function Evidence C-grade 8-16 weeks

Others take these for the same thing

Same goal, different mechanism — check any of them against this one

Coenzyme Q10 (CoQ10) Heart health & cellular energy 100-200mg A 10% Fish Oil (EPA/DHA) Heart & brain health 1-2g EPA/DHA A 85% Psyllium Husk Digestive health & cholesterol support 5-15g A 95% Calcium Citrate Superior absorption bone & heart health 500-1200 mg A 45% Taurine Cardiovascular & exercise support 1-3g A 95% L-Citrulline Athletic performance & circulation 3-8g A 95%

Every pair we checked

12 combinations scored by the engine

Hawthorn Berry + Caffeine No documented interaction either way No known interaction 70

Hawthorn Berry + Creatine Monohydrate No documented interaction either way No known interaction 70

Hawthorn Berry + Vitamin D3 No documented interaction either way No known interaction 70

Hawthorn Berry + Calcium Carbonate No documented interaction either way No known interaction 70

Hawthorn Berry + Whey Protein No documented interaction either way No known interaction 70

Hawthorn Berry + Lactase No documented interaction either way No known interaction 70

Hawthorn Berry + Bovine Collagen No documented interaction either way No known interaction 70

Hawthorn Berry + DHA No documented interaction either way No known interaction 70

Hawthorn Berry + Turmeric No documented interaction either way No known interaction 70

Hawthorn Berry + Coenzyme Q10 (CoQ10) Enhanced cardiovascular and heart muscle support Works better together 78

Hawthorn Berry + Magnesium Oxide Synergistic cardiovascular and blood pressure benefits Works better together 78

Hawthorn Berry + Omega-3 + Curcumin + Vitamin D Triple Anti-Inflammatory Formula Comprehensive cardiovascular protection Works better together 78

Dosage

With food

Daily300-600mg

Heart health300-600mg daily

Blood pressure support500-900mg daily

Circulation support300-500mg daily

Antioxidant support200-400mg daily

Before you take it

VeganYes

When to expect it

First Effects2-4 weeks for initial cardiovascular improvements

Peak Benefits8-16 weeks for sustained heart health and circulation benefits

Deficiency DevelopmentNot applicable - herbal supplement

Toxicity OnsetRare, mainly drug interactions

How to measure it

$100-200

MarkerBlood pressure, lipid profile, cardiac function tests

OptimalBP: <140/90 mmHg, healthy lipid ratios

Deficient belowNot applicable for herbal supplement

FrequencyEvery 3-6 months if using for cardiovascular support

What people actually reported to the FDA

CAERS, 2 reports naming it as the suspect

Most reported effects

Asthenia 2

Vomiting 2

Dizziness 1

Emergency care examination 1

Hospitalisation 1

Named as the suspect 2 reports of 5 that mention it at all

Serious outcome 67% hospitalisation, emergency room or worse

Hospitalization2

Life Threatening1

Required Intervention1

Reports are voluntary and unverified — they record what someone experienced while taking something, not what the compound caused. Counts skew towards products people take a lot of, and a serious outcome is more likely to be reported than a mild one, so these are not rates. How we filter them →

What actually reaches you

The label counts the carrier, your body does not

Absorption High 70 of 100 · absorbs well relative to other forms

Delivered daily 315 mg

Cost per 100 mg delivered $0.26 comparative — uses the absorption score, not a measured percentage

Works better with

3 documented

Coq10

Enhanced cardiovascular and heart muscle support

Complementary heart health benefits and energy production · level B

Magnesium

Synergistic cardiovascular and blood pressure benefits

Both support healthy blood pressure and heart rhythm · level B

Omega 3 Fatty Acids

Comprehensive cardiovascular protection

Multiple cardioprotective pathways work together · level B

What not to take with Hawthorn Berry

2 documented

Excessive Sodium

High sodium intake may counteract blood pressure benefits

Sodium promotes hypertension that hawthorn helps address · moderate significance

Stimulants Excess

High stimulant intake may stress cardiovascular system

Counteracts cardiovascular protective effects · mild significance

Medication interactions

Discuss these with a pharmacist before combining

cardiac-glycosides-digoxin Major

May enhance effects of heart medications

What to do: Avoid combination, medical supervision required

blood-pressure-medications Moderate

May enhance blood pressure lowering effects

What to do: Monitor blood pressure closely

nitrates Moderate

May enhance vasodilation effects

What to do: Monitor for excessive hypotension

Available forms

bioavailability compared

Standardized Hawthorn Extract (1.8% vitexin-2-rhamnoside) 70

Standardized Hawthorn Extract (1.8% vitexin-2-rhamnoside): Heart health support, Good research, Traditional use, Antioxidant benefits

Food sources

before you supplement

Fresh hawthorn berries Variable active compound content · 50

Hawthorn tea (flowers/leaves) Lower concentration · 40

Standardized extracts 1.8% vitexin-2-rhamnoside · 70

Not found in common foods Supplementation required · N/A

Too little

deficiency signs

Not applicable (herbal supplement, not essential nutrient):
General symptoms addressed by hawthorn:
Poor cardiovascular function and circulation
High blood pressure and vascular stress
Reduced exercise tolerance
Cardiovascular oxidative stress
Poor heart muscle function

Too much

toxicity signs

Generally very safe but potential concerns:
Drug interactions with heart medications
Blood pressure drops with BP medications
Mild digestive upset
Rare allergic reactions

Who benefits most

heart-health-general

Excellent for supporting overall cardiovascular health and function

300-600mg daily (standardized extract)

mild-hypertension

May help support healthy blood pressure levels

500-900mg daily

circulation-issues

Supports healthy circulation and vascular function

300-600mg daily

aging-cardiovascular

Provides antioxidant protection for aging cardiovascular system

300-500mg daily

exercise-performance

May improve exercise tolerance and cardiovascular endurance

400-600mg daily

Where to buy it

compare forms first

Look for Hawthorn Berry at 300-600mg per serving. The form that matters here is Standardized Hawthorn Extract (1.8% vitexin-2-rhamnoside).

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What else affects it

Beyond other supplements

Excessive sodium

High sodium intake may counteract blood pressure benefits

Sodium promotes hypertension that hawthorn helps address

How it works

Increases cardiac contractility and improves heart muscle function
Dilates coronary arteries improving blood flow to heart
Provides antioxidant protection to cardiovascular tissues
Improves vascular endothelial function and arterial health
Modulates calcium channels in heart muscle
Reduces peripheral vascular resistance lowering blood pressure

Key findings

what the evidence supports

Well-established benefits for heart health and circulation
Effective for mild hypertension and cardiovascular support
Good safety profile but requires medical supervision with heart conditions
Strong traditional use supported by modern research

Sources: NIH Examine.com · data reviewed 2026-08-02

Compiled by Denis, who maintains this database and holds no medical qualification — every figure here is sourced or derived, never asserted. How we calculate it →

Common questions

What are the benefits of Hawthorn Berry?

Documented effects: Heart function and circulation support; Blood pressure regulation; Antioxidant protection for heart; Improved exercise tolerance. Improves heart muscle contraction and overall cardiovascular function

How much Hawthorn Berry should you take per day?

The common daily range is 300-600mg. By goal — heart health: 300-600mg daily; blood pressure support: 500-900mg daily; circulation support: 300-500mg daily; antioxidant support: 200-400mg daily.

When is the best time to take Hawthorn Berry?

With food. First effects are typically reported within 2-4 weeks for initial cardiovascular improvements.

What are the side effects of Hawthorn Berry?

At excessive doses: Generally very safe but potential concerns:, Drug interactions with heart medications, Blood pressure drops with BP medications, Mild digestive upset, Rare allergic reactions. Safety rating at normal doses is 8 out of 10.

What should you not take with Hawthorn Berry?

Separate it from Excessive Sodium, Stimulants Excess by two to four hours. High sodium intake may counteract blood pressure benefits

Does Hawthorn Berry interact with medications?

Documented interactions with cardiac-glycosides-digoxin, blood-pressure-medications, nitrates. Discuss these with a pharmacist before combining.

How do you know if you need Hawthorn Berry?

The marker is Blood pressure, lipid profile, cardiac function tests, optimal range BP: <140/90 mmHg, healthy lipid ratios. Common deficiency signs: Not applicable (herbal supplement, not essential nutrient):, General symptoms addressed by hawthorn:, Poor cardiovascular function and circulation, High blood pressure and vascular stress.

Taken for

52 Heart

Fish Oil (EPA/DHA) · EPA · Olive Oil Extract