01
Why people use it
The nut of oak trees, a staple food across many Indigenous California communities and other cultures worldwide once its natural tannins are processed out.
- ✓Traditional staple food (as flour and mush)
- ✓Modern functional-food ingredient research
- ✓Traditional cough remedy (tanoak, specific communities)
02
What the evidence says
Modern nutrition research has examined acorn flour as a functional-food ingredient (naturally gluten-free, high in antioxidants when properly processed), separate from and in addition to its long-documented traditional use as a staple food.
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These labels summarize the available context; they are not a clinical recommendation.03
Common forms
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Safety note
Know before you use it
Correct species identification and proper tannin removal matter for both taste and digestibility; unleached acorns from tannin-rich species are bitter and can be difficult to digest in quantity. As with any nut, tree nut allergy is a separate safety consideration.
Sources & review
- Acorns and Native American CultureVisit California
- Oak Acorns as Functional Foods: Antioxidant Potential and Safety AssessmentPMC
- WiiwishWikipedia