What the evidence says. Early or small human trials; promising but not yet conclusive.
Nutrition per serving 100 g unsweetened pulp
Water80 g80%
Fibre3 g3%
Other carbs2 g2%
Protein2 g2%
Fat6 g6%
Other7 g7%
What's in one serving, by weight — average composition (USDA).One serving as % of the adult daily requirement (FDA Daily Values). The bold outer ring = 100% of a day's needs.
Acai Berry (Euterpe oleracea) is a fruit used for may lower oxidative-stress markers (e.g. 8-isoprostane, plasma peroxides) in small trials. NutriDex grades the human evidence as Preliminary. Acai is consumed not as a raw whole berry (which is mostly inedible seed) but as unsweetened pulp or puree, which is unusually high in fat and polyphenols and low in sugar for a fruit. Human evidence is preliminary: small randomized trials show acai can lower oxidative-stress markers and acutely improve postprandial flow-mediated dilation, and one RCT in metabolic syndrome reduced an inflammation marker (IFN-gamma) and urinary 8-isoprostane but did not improve glucose or lipid metabolism. A 2025 systematic review and meta-analysis of 8 studies (411 participants) found no significant effect on LDL-C, HDL-C, total cholesterol, or triglycerides (only total lipids fell modestly), rating the evidence low-to-very-low certainty. Much of the enthusiasm rests on in-vitro antioxidant capacity and cell models rather than clinical outcomes. There are no large prospective cohorts or hard-endpoint trials, so claims of weight loss, detox, or disease prevention are unsupported. Overall, acai is a nutritious, antioxidant-rich food with plausible but unproven health benefits in humans.
Purported Benefits
✓May lower oxidative-stress markers (e.g. 8-isoprostane, plasma peroxides) in small trials
✓May acutely improve endothelial/vascular function after a high-fat meal
✓May modestly reduce some inflammatory biomarkers (e.g. IFN-gamma)
✓High polyphenol/anthocyanin antioxidant capacity in vitro
✓Contributes dietary fibre and monounsaturated fats
✓Low in sugar relative to most fruits
Dosing & Compounds
Typical Dose
Commonly eaten as 100 g (about half a 200 g pack) of unsweetened frozen pulp or puree in a bowl or smoothie. Trials used roughly 150-200 g pulp/day or a beverage/smoothie delivering about 700 mg total phenolics; no established therapeutic dose.
Generally well tolerated as a food. Commercial acai bowls and sweetened juices often add large amounts of sugar and calories, negating the fruit's low-sugar advantage. Pollen-food allergy is possible. The pulp is high in fat, so portions are calorie-dense. Unpasteurized acai pulp has caused documented foodborne outbreaks of acute Chagas disease (Trypanosoma cruzi) in the Brazilian Amazon, and freezing does not reliably kill the parasite; pasteurized/commercial products carry far lower risk. Theoretical interactions: polyphenols may affect drug metabolism, so patients on warfarin should consult a clinician. A claimed interference with MRI/imaging studies is anecdotal and not well established. No specific grapefruit-type CYP3A4 interaction is established. Educational only — always check with your doctor or pharmacist before combining Acai Berry with any medicine.
Acai Berry is most often taken for May lower oxidative-stress markers (e.g. 8-isoprostane, plasma peroxides) in small trials, May acutely improve endothelial/vascular function after a high-fat meal, May modestly reduce some inflammatory biomarkers (e.g. IFN-gamma), High polyphenol/anthocyanin antioxidant capacity in vitro. Antioxidant Amazonian palm berry, eaten as pulp
Does Acai Berry work — what does the evidence say?
Preliminary evidence. Early or small human trials; promising but not yet conclusive. Acai is consumed not as a raw whole berry (which is mostly inedible seed) but as unsweetened pulp or puree, which is unusually high in fat and polyphenols and low in sugar for a fruit. Human evidence is preliminary: small randomized trials show acai can lower oxidative-stress markers and acutely improve postprandial flow-mediated dilation, and one RCT in metabolic syndrome reduced an inflammation marker (IFN-gamma) and urinary 8-isoprostane but did not improve glucose or lipid metabolism. A 2025 systematic review and meta-analysis of 8 studies (411 participants) found no significant effect on LDL-C, HDL-C, total cholesterol, or triglycerides (only total lipids fell modestly), rating the evidence low-to-very-low certainty. Much of the enthusiasm rests on in-vitro antioxidant capacity and cell models rather than clinical outcomes. There are no large prospective cohorts or hard-endpoint trials, so claims of weight loss, detox, or disease prevention are unsupported. Overall, acai is a nutritious, antioxidant-rich food with plausible but unproven health benefits in humans.
What is the typical dose of Acai Berry?
Commonly eaten as 100 g (about half a 200 g pack) of unsweetened frozen pulp or puree in a bowl or smoothie. Trials used roughly 150-200 g pulp/day or a beverage/smoothie delivering about 700 mg total phenolics; no established therapeutic dose.
Is Acai Berry safe? Any cautions or side effects?
Generally well tolerated as a food. Commercial acai bowls and sweetened juices often add large amounts of sugar and calories, negating the fruit's low-sugar advantage. Pollen-food allergy is possible. The pulp is high in fat, so portions are calorie-dense. Unpasteurized acai pulp has caused documented foodborne outbreaks of acute Chagas disease (Trypanosoma cruzi) in the Brazilian Amazon, and freezing does not reliably kill the parasite; pasteurized/commercial products carry far lower risk. Theoretical interactions: polyphenols may affect drug metabolism, so patients on warfarin should consult a clinician. A claimed interference with MRI/imaging studies is anecdotal and not well established. No specific grapefruit-type CYP3A4 interaction is established.
How many studies support Acai Berry?
NutriDex cites 9 sources for Acai Berry, graded "Preliminary".
Cite this page
APA
Peh, D. (2026). Acai Berry (Euterpe oleracea): Benefits, Dosage, Side Effects & Evidence. NutriDex — The Supplement Research Compendium. Retrieved 16 Sept 2026, from https://nutridex.info/s/acai-berry
BibTeX
@misc{nutridex_acai_berry,
author = {Peh, Daryl},
title = {Acai Berry (Euterpe oleracea): Benefits, Dosage, Side Effects \& Evidence},
year = {2026},
howpublished = {NutriDex --- The Supplement Research Compendium},
url = {https://nutridex.info/s/acai-berry},
note = {Reviewed by Dr Daryl Peh, MBBS Singapore, MMed FM. Accessed 2026-09-16}
}
For medical claims, citing the underlying primary studies linked above is preferred. NutriDex is an educational reference, not medical advice.