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Walnuts

Juglans regia

organic · low-heat-dried

Second richest dietary source of ellagitannins after pomegranate. Gut bacteria convert these to urolithin A. Also high in omega-3 ALA. Raw or low-heat-dried walnuts retain more ellagitannin than roasted.

Compounds in this food

2 growers

Full Belly Farm
Unverified
Guinda, CA, USA
Certification: CCOF
Braga Organic Farms, Inc.
Unverified
Madera, CA, US
Certification: CCOF

Growing method sources

Documented — confirmed by certification body, lab test, or published standard
Grower claims — stated on grower website or marketing materials; not independently verified
Inferred — based on regional conditions, growing category, or certification type; not directly confirmed

Research citations

Urolithin A, a gut metabolite, improves memory and longevity
Toney AM et al. · Aging Cell · 2019
peer-reviewedDOI →

Not medical advice. Virisource is not affiliated with any cited authors or institutions.