Home Ingredients Aronia / Chokeberry (Aronia melanocarpa)
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Aronia / Chokeberry (Aronia melanocarpa)

Aronia melanocarpa
Evidence Level
Limited
5 Clinical Trials
5 Documented Benefits
2/5 Evidence Score

Aronia, or chokeberry (Aronia melanocarpa), is a dark, very tart berry rich in anthocyanins and other polyphenols. Because the raw berries are astringent (hence the name chokeberry), it is usually taken as juice, powder or extract. Human research has looked mainly at blood pressure, cholesterol, inflammation markers and the body's own antioxidant defenses, and the results are mixed. A 2025 pooled analysis of 10 randomized trials in 666 adults found no overall effect on heart and metabolic measures and rated the certainty of the evidence as very low. Individual trials reported lower total and LDL cholesterol in former smokers, less arterial stiffness in adults with higher than ideal blood pressure, and stronger glutathione defenses after exercise in healthy adults. People taking blood pressure or blood sugar medication should check with their doctor before using concentrated products.

Studied Dose Trials cited here used 90 to 500 mg/day of extract, or 200 to 300 mL/day of juice, for 4 to 24 weeks. In the 2025 pooled analysis, a drop in systolic blood pressure appeared only in trials giving more than 50 mg/day of anthocyanins.
Active Compound Anthocyanins (mainly cyanidin-3-galactoside and cyanidin-3-arabinoside), proanthocyanidins and phenolic acids such as chlorogenic acid.

Benefits

Blood Pressure Measures

Results are mixed. A 2025 pooled analysis of 10 randomized trials found no overall effect on blood pressure, with lower systolic pressure only in trials giving over 50 mg of anthocyanins a day, and rated certainty very low. A 2019 pooled analysis of 7 trials found no effect on systolic pressure and a small rise in diastolic pressure. In a 38-person crossover trial in mildly raised blood pressure, daytime diastolic pressure fell 1.6 mmHg.

Supported by Trial 1, Trial 2

Blood Lipid Support: Total and LDL Cholesterol

In a 12-week placebo-controlled trial in 49 former smokers, 500 mg a day of aronia extract lowered total cholesterol by 8% and LDL cholesterol by 11%. Pooled results are less consistent: a 2019 analysis found lower total and LDL cholesterol only in trials shorter than 10 weeks, and a 2025 analysis found no overall effect, with lower values only where cholesterol started below 200 mg/dL.

Supported by Trial 1, Trial 2

Antioxidant Enzyme Support

In a double-blind trial in 70 healthy middle-aged adults who ate little fruit and vegetables, 300 mg a day of aronia extract for 8 weeks raised glutathione and glutathione peroxidase activity after a treadmill test compared with placebo. A 2025 review of 18 randomized trials reported higher antioxidant enzyme activity in several studies, but a 12-week trial in former smokers found no change in oxidative stress markers.

Supported by Trial 5, Trial 3

Arterial Function Support

In a 12-week double-blind trial in 102 middle-aged adults with higher than ideal blood pressure, an aronia extract did not change blood pressure, the registered primary outcome, but improved arterial stiffness measures (pulse wave velocity and augmentation index) compared with placebo. Endothelial function (flow-mediated dilation) and blood lipids did not change. Several authors were employed or funded by the ingredient company Naturex.

Supported by Trial 4

Inflammation Marker Support

Results are mixed. A 2025 review of 18 randomized trials reported lower CRP, TNF-alpha and IL-6 in several studies, and in 38 adults with mildly raised blood pressure TNF-alpha fell over 8 weeks. But a 2019 pooled analysis of 7 trials found no significant effect on CRP, TNF or IL-1, and a 12-week trial in former smokers found no change in inflammation markers.

Supported by Trial 2, Trial 1

Mechanism of action

1

Anthocyanin Antioxidant Activity

Aronia is rich in anthocyanins, mainly cyanidin glycosides. In laboratory work these compounds neutralize free radicals and are proposed to switch on the cell's own antioxidant enzymes. In people, effects have only been measured as blood enzyme and marker changes, with mixed results across trials.

2

Endothelial Nitric Oxide Modulation

Laboratory work suggests aronia polyphenols support nitric oxide signalling in blood vessel walls. In the largest trial cited here, arterial stiffness improved but flow-mediated dilation, a measure of endothelial function, did not change, so this pathway is not confirmed in people.

3

Cholesterol Handling

In the former-smoker trial, the cholesterol drop came with lower LDL receptor protein in blood immune cells and was most closely linked to urinary levels of cyanidin-3-galactoside and its metabolite peonidin-3-galactoside. How aronia affects cholesterol is not established.

4

Inflammation Signalling and Gut Microbiome

Anthocyanins are proposed to dampen inflammatory signalling such as NF-kB in laboratory studies. In a 12-week trial, aronia extract increased gut microbiome gene richness and butyrate-producing bacteria, which the authors linked to its arterial effects; that link is an association, not a proven cause.

5

Blood Sugar Handling

Aronia extracts are proposed to slow starch-digesting enzymes in laboratory studies. In people, the 2025 pooled analysis found no overall effect on fasting blood sugar, and in adults aged 50 or younger fasting blood sugar rose in the subgroup analysis.

Clinical trials

1
Chokeberry and Cardiometabolic Outcomes: Pooled Analysis of 10 Trials
PubMed

Systematic review and meta-analysis of randomized controlled trials of chokeberry supplementation lasting at least 2 weeks in adults, searched through January 2025, with certainty rated by GRADE. (Frumuzachi et al. 2025, Nutrients)

10 randomized trials, 666 adults with or without cardiometabolic risk factors.

Chokeberry had no significant effect on body measures, blood sugar, blood lipids or blood pressure overall. Subgroups suggested lower total and LDL cholesterol when cholesterol started below 200 mg/dL, lower systolic pressure with more than 50 mg/day of anthocyanins, and higher fasting glucose in adults aged 50 or younger. Risk of bias was unclear or high in several trials and certainty was very low for every outcome.

2
Aronia and Lipids, Blood Pressure and Inflammation: Pooled Analysis of 7 Trials
PubMed

Systematic review and meta-analysis of randomized controlled trials of aronia on lipids, blood pressure and inflammation markers, searched to December 2018. (Rahmani et al. 2019, Phytother Res)

7 randomized controlled trials.

HDL cholesterol rose by 1.48 mg/dL and, unexpectedly, diastolic blood pressure rose by 2.55 mmHg. There was no significant effect on systolic blood pressure, CRP, TNF or IL-1. Total and LDL cholesterol fell only in the subgroup of trials shorter than 10 weeks.

3
Aronia Extract and Cholesterol in Former Smokers
PubMed

12-week randomized placebo-controlled trial of 500 mg/day aronia extract; the primary outcome was change in LDL cholesterol. (Xie et al. 2017, Nutr Res)

49 healthy adult former smokers (25 aronia, 24 placebo).

Compared with placebo, total cholesterol fell 8% and LDL cholesterol 11%. Blood pressure, inflammation markers and oxidative stress markers did not change.

4
Aronia Extract and Arterial Function in Adults With Higher Than Ideal Blood Pressure
PubMed

12-week randomized double-blind placebo-controlled parallel trial of an encapsulated aronia (poly)phenol extract versus maltodextrin; the registered primary outcome was 24-hour ambulatory blood pressure, and several authors were employed or funded by the industry collaborator Naturex. (Le Sayec et al. 2022, Clin Nutr)

102 middle-aged men and women with prehypertension (51 per group).

Blood pressure, the registered primary outcome, did not change. Arterial stiffness measures (pulse wave velocity and augmentation index) improved compared with placebo, while endothelial function (flow-mediated dilation) and blood lipids did not change. Gut microbiome gene richness and butyrate-producing species increased.

5
Aronia Extract and Glutathione Defenses After Exercise
PubMed

8-week double-blind randomized controlled trial of 300 mg/day aronia berry extract, with a 30-minute treadmill test at the end used to create oxidative stress. (Chung et al. 2023, J Hum Nutr Diet)

70 healthy middle-aged adults with habitually low fruit and vegetable intake.

Compared with placebo, the extract group had higher reduced glutathione availability and glutathione peroxidase activity immediately and 30 minutes after exercise. These are blood markers of antioxidant defense, not health outcomes.

Side effects and drug interactions

Common Potential side effects

The trials cited here lasted 4 to 24 weeks and focused on heart, metabolic and marker outcomes; their abstracts do not describe safety problems, but safety was not their main aim.
The berries are very tart and astringent, so juices are often sweetened; check the sugar content of juice products.
Aronia may add to the effect of blood pressure or blood sugar medication; this is a theoretical concern that the cited trials did not test.
Polyphenols have been proposed to affect platelets, so a bleeding interaction is theoretical; its clinical relevance is unknown.
Pregnancy and breastfeeding: the cited research gives no safety data for supplement doses.

Important Drug interactions

Blood pressure medication: possible additive effect (theoretical; not tested in the cited trials).
Anticoagulant or antiplatelet drugs (such as warfarin, clopidogrel, aspirin): theoretical bleeding concern from polyphenols; no clinical data in the cited research.
Cholesterol-lowering medication (statins): no interaction data in the cited research; discuss with your doctor.
Diabetes medication: no interaction data in the cited research; one pooled subgroup showed higher fasting blood sugar, so monitor if combining.

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Frequently asked questions about Aronia / Chokeberry (Aronia melanocarpa)

What is aronia (chokeberry) used for?

Aronia is a dark berry rich in anthocyanins. People take it as juice, powder or extract mainly for heart and metabolic support. Trials have looked at blood pressure, cholesterol, arterial stiffness, inflammation markers and antioxidant enzymes, with mixed results.

Does aronia lower blood pressure or cholesterol?

The evidence is mixed. A 2025 pooled analysis of 10 randomized trials found no overall effect on blood pressure, cholesterol or blood sugar and rated the evidence as very low certainty. Some single trials found lower LDL cholesterol or less arterial stiffness.

How much aronia should I take?

Trials used 90 to 500 mg a day of extract or 200 to 300 mL a day of juice for 4 to 24 weeks. Follow product labeling, and check the sugar content of sweetened juices.

Is aronia safe?

Aronia is a food berry, and the cited trials did not describe safety problems, though safety was not their main aim. If you take blood pressure, blood sugar or blood-thinning medication, check with your doctor before using concentrated products.

What is Aronia / Chokeberry?

Aronia, or chokeberry (Aronia melanocarpa), is a dark, very tart berry rich in anthocyanins and other polyphenols. Because the raw berries are astringent (hence the name chokeberry), it is usually taken as juice, powder or extract.

What is Aronia / Chokeberry used for?

Aronia / Chokeberry is researched primarily for Cardiovascular, Antioxidant, and Anti-Inflammatory. Results are mixed. A 2025 pooled analysis of 10 randomized trials found no overall effect on blood pressure, with lower systolic pressure only in trials giving over 50 mg of anthocyanins a day, and rated certainty very low.

Does Aronia / Chokeberry interact with any medications?

Possible interactions include: Blood pressure medication: possible additive effect (theoretical; not tested in the cited trials). Anticoagulant or antiplatelet drugs (such as warfarin, clopidogrel, aspirin): theoretical bleeding concern from polyphenols; no clinical data in the cited research. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Aronia / Chokeberry?

NutraSmarts rates the evidence for Aronia / Chokeberry as Limited (2 out of 5). It is backed by 5 study summaries and 9 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(9 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Rahmani J, Clark C, Kord Varkaneh H, Lakiang T, Vasanthan LT, Onyeche V, Mousavi SM, Zhang Y. The effect of Aronia consumption on lipid profile, blood pressure, and biomarkers of inflammation: A systematic review and meta-analysis of randomized controlled trials. Phytother Res. 2019;33(8):1981-1990. doi: 10.1002/ptr.6398.PubMedUsed to support: Meta-analysis of 7 randomized trials (search to December 2018): HDL rose 1.48 mg/dL and diastolic blood pressure rose 2.55 mmHg, with no significant effect on systolic blood pressure, CRP, TNF or IL-1. Total and LDL cholesterol fell only in trials shorter than 10 weeks, and triglycerides fell at 300 mg/day in the dose-response analysis.
  2. Frumuzachi O, Mocan A, Rohn S, Gavrilaș L. Impact of a Chokeberry (Aronia melanocarpa (Michx.) Elliott) Supplementation on Cardiometabolic Outcomes: A Critical Systematic Review and Meta-Analysis of Randomized Controlled Trials. Nutrients. 2025;17(9):1488. doi: 10.3390/nu17091488.PubMedUsed to support: Systematic review and meta-analysis of 10 RCTs (666 adults): no significant overall effect on cardiometabolic outcomes. Subgroups suggested lower total and LDL cholesterol when baseline cholesterol was below 200 mg/dL and lower systolic pressure above 50 mg/day anthocyanins, with higher fasting glucose in adults 50 or younger. Certainty was very low for all outcomes.
  3. Loo BM, Erlund I, Koli R, Puukka P, Hellström J, Wähälä K, Mattila P, Jula A. Consumption of chokeberry (Aronia mitschurinii) products modestly lowered blood pressure and reduced low-grade inflammation in patients with mildly elevated blood pressure. Nutr Res. 2016;36(11):1222-1230. doi: 10.1016/j.nutres.2016.09.005.PubMedUsed to support: Single-blinded randomized crossover trial in 38 adults with untreated mildly raised blood pressure (300 mL/day juice plus 3 g/day powder, 8 weeks each): daytime ambulatory diastolic pressure fell 1.64 mmHg and TNF-alpha and IL-10 fell; serum lipids, glucose and platelet aggregation did not change.
  4. Le Sayec M, Xu Y, Laiola M, Gallego FA, Katsikioti D, Durbidge C, Kivisild U, Armes S, Lecomte M, Fança-Berthon P, Fromentin E, Plaza Oñate F, Cruickshank JK, Rodriguez-Mateos A. The effects of Aronia berry (poly)phenol supplementation on arterial function and the gut microbiome in middle aged men and women: Results from a randomized controlled trial. Clin Nutr. 2022;41(11):2549-2561. doi: 10.1016/j.clnu.2022.08.024.PubMedUsed to support: Randomized double-blind placebo-controlled trial in 102 prehypertensive middle-aged adults (12 weeks): aronia extract improved arterial stiffness (pulse wave velocity, augmentation index) and raised gut microbiome richness, with no change in blood pressure, flow-mediated dilation or blood lipids. Several authors were employed or funded by Naturex (Givaudan).
  5. Ahles S, Stevens YR, Joris PJ, Vauzour D, Adam J, de Groot E, Plat J. The Effect of Long-Term Aronia melanocarpa Extract Supplementation on Cognitive Performance, Mood, and Vascular Function: A Randomized Controlled Trial in Healthy, Middle-Aged Individuals. Nutrients. 2020;12(8):2475. doi: 10.3390/nu12082475.PubMedUsed to support: Randomized double-blind placebo-controlled trial in 101 healthy, middle-aged overweight adults (90 or 150 mg/day extract, 24 weeks): 90 mg improved psychomotor speed versus placebo; attention, cognitive flexibility, BDNF and blood pressure versus placebo did not change. Two authors were employees of BioActor.
  6. Kardum N, Milovanović B, Šavikin K, Zdunić G, Mutavdžin S, Gligorijević T, Spasić S. Beneficial Effects of Polyphenol-Rich Chokeberry Juice Consumption on Blood Pressure Level and Lipid Status in Hypertensive Subjects. J Med Food. 2015;18(11):1231-8. doi: 10.1089/jmf.2014.0171.PubMedUsed to support: Uncontrolled 4-week study in 23 adults with untreated high normal blood pressure or grade I hypertension drinking 200 mL/day chokeberry juice: 24-hour and awake blood pressure and triglycerides fell. With no control group, these changes cannot be attributed to the juice with confidence.
  7. Xie L, Vance T, Kim B, Lee SG, Caceres C, Wang Y, Hubert PA, Lee JY, Chun OK, Bolling BW. Aronia berry polyphenol consumption reduces plasma total and low-density lipoprotein cholesterol in former smokers without lowering biomarkers of inflammation and oxidative stress: a randomized controlled trial. Nutr Res. 2017;37:67-77. doi: 10.1016/j.nutres.2016.12.007.PubMedUsed to support: Randomized placebo-controlled trial in 49 former smokers (500 mg/day aronia extract, 12 weeks): total cholesterol fell 8% and LDL cholesterol 11% versus placebo, while blood pressure and markers of inflammation and oxidative stress did not change.
  8. Sarıkaya B, Kolay E, Guney-Coskun M, Yiğit-Ziolkowski A, Aktaç Ş. The Effect of Black Chokeberry (Aronia melanocarpa) on Human Inflammation Biomarkers and Antioxidant Enzymes: A Systematic Review of Randomized Controlled Trials. Nutr Rev. 2025;83(6):1083-1098. doi: 10.1093/nutrit/nuae143.PubMedUsed to support: Systematic review (no pooled analysis) of 18 randomized trials using aronia juice, extract or powder for 4 to 13 weeks: reported reductions in CRP, TNF-alpha and IL-6, higher IL-10, and higher SOD, glutathione peroxidase and catalase activity in several studies.
  9. Chung JW, Kim JE, Nam YE, Kim WS, Lee I, Yim SV, Kwon O. Eight-week supplementation of Aronia berry extract promoted the glutathione defence system against acute aerobic exercise-induced oxidative load immediately and 30 min post-exercise in healthy adults: a double-blind, randomised controlled trial. J Hum Nutr Diet. 2023;36(4):1589-1599. doi: 10.1111/jhn.13150.PubMedUsed to support: Double-blind randomized controlled trial in 70 healthy middle-aged adults with low fruit and vegetable intake: 300 mg/day aronia extract for 8 weeks increased glutathione availability and glutathione peroxidase activity after a 30-minute treadmill test compared with placebo.