What does Strawberry Extract do?

Antioxidant-rich fruit extract with promising lab results, but zero human clinical trials to confirm real-world benefits.

Is Strawberry Extract safe?

Zero human clinical trials in the available evidence base — all findings are from cell cultures or animal models

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Strawberry Extract

Also known as: Fragaria ananassa extract, Fragaria vesca extract, polyphenol-rich strawberry extract, PRSE, strawberry ellagitannin extract

Effective Dosage

No established dose

What the Science Says

Strawberry extract is a concentrated source of polyphenols, anthocyanins, ellagitannins, and vitamins derived from strawberry fruit. In laboratory and animal studies, it has shown antioxidant and anti-inflammatory activity, reduced lipid accumulation in liver cells, and slowed the growth of certain cancer cell lines. One rat study found that ellagitannin-rich strawberry extract reduced body weight gain, cholesterol, and triglycerides when added to a high-fat diet. No human clinical trials have been conducted, so it is unknown whether these effects translate to real benefits in people.

What It Doesn't Do

Not proven to treat or prevent cancer in humans — all cancer findings are from lab dishes and mice. Won't reliably lower your cholesterol based on current evidence. No proven weight loss effect in people. Not a substitute for a healthy diet. The photoprotection findings are from cell cultures, not sunscreen trials — don't skip your SPF.

Evidence-Based Benefits

Strawberry extract is rich in antioxidants, particularly vitamin C and polyphenols, which may contribute to overall health and support immune function. Preliminary studies suggest potential anti-inflammatory and antioxidant effects, but robust clinical evidence is lacking.

Weak Evidence

Effective at: No established dose

Source: auto-research

Absorption & Bioavailability

Unknown — no human pharmacokinetic studies in the provided data. Animal studies suggest ellagitannin metabolites appear in urine and plasma, indicating some absorption, but human bioavailability is unconfirmed.

Red Flags to Watch For

Zero human clinical trials in the available evidence base — all findings are from cell cultures or animal models
No established safe or effective dose for humans
Over 1,000 supplement products registered despite no clinical proof of efficacy
Cancer-related marketing claims are based entirely on in vitro (lab dish) data and should not be taken as treatment evidence
Extracts vary widely in polyphenol content and standardization — product quality is inconsistent

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: 2026-04-06