Acai Extract
Research reviewed: Up until 03/2026
Acai Extract (Euterpe oleracea) is a dietary supplement with 12 published peer-reviewed studies involving 640 participants, researched for Antioxidant & Anti-inflammatory Effects, Cardiovascular Health, Metabolic Health and 2 more areas.
Evidence at a Glance
Strength is scored by study design, sample size, study type, and outcomes
Antioxidant & Anti-inflammatory Effects
StrongCardiovascular Health
ModerateMetabolic Health
ModerateClinical trials
ModerateSystematic reviews
WeakResearch Visualised
Visual breakdown of the clinical data.
Study Quality Breakdown
What types of studies were conducted
Participants Per Study
Larger samples = more reliable results
Research Timeline
When the studies were published
All Studies
Detailed breakdown of each trial. Click to expand.
Antioxidant & Anti-inflammatory Effects
To evaluate antioxidant and anti-inflammatory effects of acai pulp in overweight adults
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate antioxidant and anti-inflammatory effects of acai pulp in overweight adults
Dose
100 g/day acai pulp
Participants
23 overweight adults
Duration
4 weeks
Results
Significant increase in plasma antioxidant capacity (p=0.04). Fasting glucose reduced by 5.9% and insulin by 3.5%. Anti-inflammatory markers improved.
How They Measured It
Plasma ORAC, CRP, IL-6, fasting glucose
To assess acute antioxidant effects of acai beverage consumption
Study Type
Randomised, crossover trial
Purpose
To assess acute antioxidant effects of acai beverage consumption
Dose
400 ml acai beverage
Participants
12 healthy volunteers
Duration
Single dose, 4-hour monitoring
Results
Significant increase in serum antioxidant capacity peaking at 2 hours (p<0.05). Anthocyanin levels increased 2-fold vs baseline.
How They Measured It
ORAC, TEAC, serum anthocyanin levels
To evaluate acai extract effects on inflammatory markers in metabolic syndrome
Study Type
Randomised, placebo-controlled
Purpose
To evaluate acai extract effects on inflammatory markers in metabolic syndrome
Dose
200 ml acai juice daily
Participants
40 participants with metabolic syndrome
Duration
30 days
Results
Significant reduction in CRP (31%), TNF-alpha (23%), and IL-6 (18%) vs placebo. Insulin resistance improved significantly.
How They Measured It
CRP, TNF-alpha, IL-6, HOMA-IR
Cardiovascular Health
To assess acai supplementation on cardiovascular risk factors in overweight adults
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To assess acai supplementation on cardiovascular risk factors in overweight adults
Dose
200 mg acai extract daily
Participants
60 overweight adults
Duration
12 weeks
Results
LDL cholesterol reduced by 10.6% (p=0.02) and total cholesterol by 8%. Endothelial function improved.
How They Measured It
Lipid panel, blood pressure, endothelial function
To evaluate acai extract on platelet aggregation and cardiovascular markers
Study Type
Randomised, controlled trial
Purpose
To evaluate acai extract on platelet aggregation and cardiovascular markers
Dose
120 g/day frozen acai pulp
Participants
35 healthy volunteers
Duration
4 weeks
Results
Significant reduction in LDL oxidation (p=0.03) and platelet aggregation. Plasma anthocyanin correlated with improved cardiovascular markers.
How They Measured It
Platelet aggregation, lipid peroxidation, LDL oxidation
Metabolic Health
To evaluate acai effects on glucose metabolism and insulin sensitivity
Study Type
Randomised, double-blind, placebo-controlled
Purpose
To evaluate acai effects on glucose metabolism and insulin sensitivity
Dose
200 ml acai drink twice daily
Participants
49 participants with glucose intolerance
Duration
8 weeks
Results
Significant improvement in post-challenge glucose (p=0.03) and insulin sensitivity. HOMA-IR reduced by 14% vs baseline.
How They Measured It
OGTT, insulin levels, HOMA-IR, HbA1c
To examine acai pulp effects on postprandial metabolism
Study Type
Randomised, crossover
Purpose
To examine acai pulp effects on postprandial metabolism
Dose
400 g frozen acai pulp
Participants
10 healthy subjects
Duration
Single meal study
Results
Acai meal significantly attenuated postprandial glucose rise by 29%. Postprandial insulin also reduced by 22%.
How They Measured It
Postprandial glucose, insulin, triglycerides
To summarize evidence on acai berry health effects in human clinical trials
Study Type
Systematic review
Purpose
To summarize evidence on acai berry health effects in human clinical trials
Dose
Various
Participants
Systematic review of clinical studies
Duration
Various
Results
Evidence supports antioxidant, anti-inflammatory, and lipid-lowering effects. Benefits for cardiovascular risk factors and oxidative stress. Larger RCTs needed.
How They Measured It
Systematic review of clinical outcomes
Clinical trials
To investigate the effects of Acai Extract in dietary intake of anthocyanins improves arterial stiffness, but not endothelial function, in volunteers with excess weight: a randomized clinical tria
Study Type
Randomized, double-blind, placebo-controlled
Purpose
To investigate the effects of Acai Extract in dietary intake of anthocyanins improves arterial stiffness, but not endothelial function, in volunteers with excess weight: a randomized clinical tria
Dose
Acai Extract (dose not specified)
Participants
Participants not specified
Duration
Duration not specified
Results
, dietary intake of anthocyanins proved effective in protecting against arterial stiffness (by PWV) in individuals with excess weight. PVR was reduced in both diet groups regardless of dietary intake of anthocyanins.
How They Measured It
See study for outcome measures
To investigate the effects of Acai Extract in effects of acai supplementation (euterpe precatoria mart) on muscle recovery markers after jump protocol.
Study Type
Randomized, double-blind, placebo-controlled
Purpose
To investigate the effects of Acai Extract in effects of acai supplementation (euterpe precatoria mart) on muscle recovery markers after jump protocol.
Dose
Acai Extract (dose not specified)
Participants
Participants not specified
Duration
Duration not specified
Results
009;= 113 ± 31 vs. GP = 98 ± 26 N∙m). No significance was observed in the fatigue index for knee extensors ( p = 0.75) and flexors ( p = 0.89), indicating similar fatigue in both situations. We concluded that AS increased the TEAC and promoted faster recovery of the knee flexors IPT when compared to GP.
How They Measured It
See study for outcome measures
To investigate the effects of Acai Extract in supplementation with açaí (euterpe oleracea martius) for the treatment of chronic tinnitus: effects on perception, anxiety levels and oxidative metabo
Study Type
Randomized, double-blind, placebo-controlled
Purpose
To investigate the effects of Acai Extract in supplementation with açaí (euterpe oleracea martius) for the treatment of chronic tinnitus: effects on perception, anxiety levels and oxidative metabo
Dose
Acai Extract (dose not specified)
Participants
Participants not specified
Duration
Duration not specified
Results
To investigate the effects of antioxidant supplementation with açaí extract on the discomfort with chronic tinnitus and the relationship with the levels of anxiety and oxidative metabolism, not excluding the overlap of diseases.
How They Measured It
See study for outcome measures
Systematic reviews
To investigate the effects of Acai Extract in investigating the impact of açai (euterpe oleracea) on lipid profile: a comprehensive systematic review and meta-analysis.
Study Type
Systematic review and meta-analysis
Purpose
To investigate the effects of Acai Extract in investigating the impact of açai (euterpe oleracea) on lipid profile: a comprehensive systematic review and meta-analysis.
Dose
Acai Extract (dose not specified)
Participants
411 participants
Duration
Duration not specified
Results
p < 0.001). GRADE evaluation pointed to low/very low certainty of evidence. Açaí consumption may lessen total lipid levels, but no significant effect was noted for cholesterol parameters and triglycerides. Further trials with more demanding research methodologies are required to clarify the effects of açaí on lipid profiles. Trial Registration: CRD42024549531.
How They Measured It
See study for outcome measures
Frequently Asked Questions
Common questions about Acai Extract research
There are currently 12 peer-reviewed studies on Acai Extract (Euterpe oleracea), involving 640 total participants. Research covers Antioxidant & Anti-inflammatory Effects, Cardiovascular Health, Metabolic Health and 2 more areas. The overall evidence strength is rated as Strong.
The evidence is currently rated as "Strong Evidence". This rating is based on study design quality (randomisation, blinding, placebo controls), sample sizes, study types (10 human studies), and reported outcomes.
Acai Extract has been researched for: Antioxidant & Anti-inflammatory Effects, Cardiovascular Health, Metabolic Health, Clinical trials, Systematic reviews. Each area has its own body of evidence which you can explore in the study breakdowns above.
Yes, 10 out of 12 studies are human trials. Human trials carry more weight in our evidence scoring system.
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