Açai Berry
Also known as: Euterpe oleracea, Euterpe oleracea Mart., acai, açaí
Effective Dosage
200 g pulp daily (clinical trial dose); no standardized extract dose established
What the Science Says
Açai berry is the fruit of a South American palm tree, packed with anthocyanins — natural pigments that act as antioxidants in the body. In one human clinical trial, adding 200 g of açai pulp daily to a calorie-reduced diet for 60 days reduced a key marker of oxidative stress (8-isoprostane) and lowered the inflammatory marker IL-6 in overweight adults. Anthocyanins from açai are absorbed into the bloodstream within about 2 hours of consumption, with pulp showing better absorption than juice.
What It Doesn't Do
Won't cure or treat cancer — a prostate cancer trial failed its primary endpoint. No proven effect on blood sugar or cholesterol in humans. Brain and nerve benefits are based entirely on animal studies, not human trials. Not a weight loss supplement on its own. The antifungal and neuroprotection effects seen in lab and animal studies have not been tested in people.
Evidence-Based Benefits
Açai berry is the fruit of a South American palm tree, packed with anthocyanins — natural pigments that act as antioxidants in the body. In one human clinical trial, adding 200 g of açai pulp daily to a calorie-reduced diet for 60 days reduced a key marker of oxidative stress (8-isoprostane) and lowered the inflammatory marker IL-6 in overweight adults. Anthocyanins from açai are absorbed into the bloodstream within about 2 hours of consumption, with pulp showing better absorption than juice.
Weak EvidenceEffective at: 200 g pulp daily (clinical trial dose); no standardized extract dose established
Source: auto-research
Absorption & Bioavailability
Moderate — anthocyanins from açai pulp are absorbed and detectable in plasma within 2 hours (Cmax ~2321 ng/L for pulp vs ~1138 ng/L for juice). Pulp absorbs better than clarified juice. Bioavailability decreases non-linearly at higher doses.
Red Flags to Watch For
- Most exciting claims (brain health, Parkinson's, diabetes neuropathy) come from mouse studies only — not human trials
- One prostate cancer trial failed its primary endpoint; do not use as a cancer treatment
- Supplements are highly variable — 1,000+ registered products with no standardized dose or extract potency
- One paper (PMID 37775630) studied açai extract for industrial dye removal — completely irrelevant to human health but may be cited in marketing
- Human evidence is limited to a single small RCT (n=69) for antioxidant/anti-inflammatory effects
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-09