Cranberry Seed
Also known as: Vaccinium macrocarpon seed, cranberry seed oil, cranberry seed powder
Effective Dosage
No established dose
What the Science Says
Cranberry seed is the pressed or ground seed of the cranberry fruit (Vaccinium macrocarpon). The seed oil is notably rich in omega-3 and omega-6 fatty acids in a roughly 1:1 ratio, along with tocopherols (vitamin E forms) and antioxidant compounds like proanthocyanidins. These nutrients are associated with general skin health and antioxidant protection in laboratory settings, but no clinical trials from the provided data confirm specific health benefits in humans at any particular dose or timeframe.
What It Doesn't Do
Not the same as cranberry extract — it won't prevent UTIs. No proven benefit for urinary tract health specifically from the seed. Not a substitute for omega-3 fish oil supplements with established clinical backing. No evidence it detoxifies the body or boosts immunity in humans. Marketing claims about 'superfood' status are not backed by clinical trials.
Evidence-Based Benefits
No published research papers were provided to support any specific efficacy claims for cranberry seed as a supplement ingredient. Cranberry seed (distinct from cranberry fruit or juice) is sometimes marketed for its oil content, including tocopherols and fatty acids, but no studies were available to confirm clinical benefits.
Weak EvidenceEffective at: No established dose
Source: auto-research
Absorption & Bioavailability
Unknown — no human absorption or pharmacokinetic studies were found in the provided data. Fatty acids from seed oils are generally absorbed reasonably well with food, but this has not been confirmed specifically for cranberry seed.
Red Flags to Watch For
- No clinical trials specifically on cranberry seed have been provided — health claims are largely theoretical or based on nutrient composition alone
- Often marketed alongside cranberry extract UTI benefits, which do not apply to the seed fraction
- Dose and safety data are absent; products vary widely in concentration and form (oil vs. powder)
- High presence in supplement products (1000+ registered) relative to very limited published research suggests marketing outpaces evidence
- Seed oils can go rancid quickly — poor storage or low-quality sourcing may reduce any potential benefit
Research Sources
- General knowledge
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