Hawthorn

Evidence status

Limited evidence to recommend for any consumer outcome yet.

6 papers · 2 claims · 25 outcomes scored

Outcomes

What hawthorn actually does, by outcome

Each row is one outcome with effect size, evidence base, the dose that worked in trials, and time to first effect. Magnitude tiers come from native-unit MCID where available, Cohen's d otherwise.

Outcome Effect size Evidence Dose Weeks Rank

Lower your blood pressure Early negative signal

Brings down both systolic and diastolic, especially when baseline runs high.

2 RCTs n=164 60–2500 mg 1–8 wk

22458601·39583031

moderate

2 RCTs n=164

60–2500 mg

1–8 wk

—

Improve function in heart failure Probably doesn't help

Stronger pumping, better exercise tolerance, fewer hospital visits.

1 meta-analysis n=2.1k — —

41268442

trivial

1 meta-analysis n=2.1k Meta-analyzed

—

Outcome	Effect	Evidence	Dose	Weeks	Rank
Lower your blood pressure Early negative signal	moderate	2 RCTs n=164	60–2500 mg	1–8 wk	—
Improve function in heart failure Probably doesn't help	trivial	1 meta-analysis n=2.1k Meta-analyzed	—	—	—

Risk profile

Adverse events and known drug interactions

Safety events

worsening heart failure severe

serious adverse event severe

atrioventricular block complete severe

hearing loss moderate

fall moderate

nausea mild

dizziness mild

cardiac complaints mild

Drug interactions

Digoxin major increases toxicity

Digoxin moderate decreases concentration

Antithrombotic Agents moderate additive

Antihypertensives moderate increases effect

Sources

Generated August 14, 2026

Hawthorn

What hawthorn actually does, by outcome

Adverse events and known drug interactions

More evidence for Hawthorn

Arginine

Black Garlic

Caffeine

flavan-3-ols

Garlic

Nattokinase

Hawthorn

More evidence for Hawthorn

NewArginine

NewBlack Garlic

NewCaffeine

Newflavan-3-ols

NewGarlic

NewNattokinase

Arginine

Black Garlic

Caffeine

flavan-3-ols

Garlic

Nattokinase