# Omega Walnut (Juglans regia 'Chandler')

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/omega-walnut
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-03
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Chandler walnut, Chandler variety walnut, Juglans regia 'Chandler', English walnut Chandler cultivar, Chandler English walnut, California Chandler walnut

## Overview

Omega Walnut (Juglans regia 'Chandler') is a cultivated walnut variety characterized by an exceptionally high alpha-linolenic acid (ALA) content and polyphenol concentrations up to 5100 mg GAE per 100 g kernel. Its primary bioactive compounds — ALA, ellagitannins, and juglone — modulate [inflammatory pathway](/ingredients/condition/inflammation)s and exert antioxidant activity through [free radical scaveng](/ingredients/condition/antioxidant)ing.

## Health Benefits

• High omega-3:omega-6 PUFA ratio may reduce [inflammation](/ingredients/condition/inflammation) (compositional data only, no clinical trials)
• Polyphenols (up to 5100 mg GAE/100 g kernel) provide [antioxidant activity](/ingredients/condition/antioxidant) (in vitro evidence only)
• Cytotoxic properties may prevent free radical-induced nucleic acid damage (preliminary evidence)
• Rich in γ-tocopherol (47.5-62.2 mg/100 g) supporting antioxidant defense (compositional analysis)
• Higher mineral content (K, Cu, Zn) compared to some walnut varieties (compositional data only)

## Mechanism of Action

Alpha-linolenic acid (ALA) in Omega Walnut serves as a precursor to EPA and DHA, competitively inhibiting delta-6-desaturase activity of omega-6 arachidonic acid [metabolism](/ingredients/condition/weight-management) and thereby reducing downstream synthesis of pro-inflammatory eicosanoids such as [prostaglandin](/ingredients/condition/inflammation) E2 and leukotriene B4. Ellagitannins, including pedunculagin and tellimagrandin, are metabolized by gut microbiota into urolithins, which inhibit NF-κB signaling and downregulate COX-2 expression. Juglone (5-hydroxy-1,4-naphthoquinone) acts as a [reactive oxygen species](/ingredients/condition/antioxidant) scavenger and may intercalate with DNA to prevent oxidative strand breaks, as suggested by preliminary in vitro cytotoxicity assays.

## Clinical Summary

No cultivar-specific randomized controlled trials exist for Juglans regia 'Chandler'; available evidence is limited to compositional analyses and in vitro studies. Broader walnut research, such as the WAHA trial (n=708), demonstrated that daily walnut consumption (30–60 g) reduced [LDL cholesterol](/ingredients/condition/heart-health) by approximately 4.3% and [inflammatory](/ingredients/condition/inflammation) markers including IL-6, but these findings cannot be directly extrapolated to the Chandler cultivar. In vitro [antioxidant](/ingredients/condition/antioxidant) assays using Chandler kernel extracts report DPPH radical scavenging activity consistent with high polyphenol load, though bioavailability in humans remains unquantified. The current evidence base warrants cautious interpretation; cultivar-specific human trials are needed to validate compositional advantages as clinical outcomes.

## Nutritional Profile

Omega Walnut (Juglans regia 'Chandler') is a high-fat, moderate-protein tree nut with a distinctive fatty acid profile. Macronutrients per 100 g kernel (approximate): total fat 60–65 g, protein 14–17 g, carbohydrates 14–16 g, dietary fiber 6–7 g, moisture 3–5 g, energy ~650–700 kcal. Fatty acid profile is characterized by a notably favorable PUFA composition: α-linolenic acid (ALA, omega-3) 8–13 g/100 g, linoleic acid (omega-6) 33–38 g/100 g, oleic acid (omega-9, MUFA) 9–12 g/100 g, saturated fatty acids (primarily palmitic and stearic) 6–8 g/100 g; the omega-6:omega-3 ratio in 'Chandler' is reported at approximately 4:1–5:1, comparatively lower than many other walnut cultivars. Vitamin E: dominated by γ-tocopherol at 47.5–62.2 mg/100 g (exceptionally high relative to most tree nuts), with α-tocopherol present at 1.5–3.0 mg/100 g; total tocopherol content supports lipid-phase [antioxidant](/ingredients/condition/antioxidant) defense. B vitamins include folate (~98 µg/100 g DFE), B6 (~0.54 mg/100 g), thiamine (~0.34 mg/100 g), and riboflavin (~0.15 mg/100 g). Minerals: magnesium 155–175 mg/100 g, phosphorus 340–360 mg/100 g, potassium 440–470 mg/100 g, copper 1.5–1.8 mg/100 g, manganese 3.0–3.5 mg/100 g, zinc 2.5–3.5 mg/100 g, calcium 95–110 mg/100 g, iron 2.6–3.0 mg/100 g, selenium 4–5 µg/100 g. Polyphenol content: total polyphenols up to 5100 mg GAE/100 g kernel (skin-inclusive), with ellagitannins (pedunculagin, tellimagrandin), juglone precursors, flavonoids (quercetin, kaempferol glycosides), and phenolic acids (chlorogenic, gallic, ellagic) as primary contributors; skin removal significantly reduces polyphenol content. Phytosterols: ~113–115 mg/100 g, predominantly β-sitosterol. Melatonin reported at ~3.5 ng/g kernel. Bioavailability notes: ALA bioconversion to EPA/DHA is limited in humans (estimated <5–15%); polyphenol bioavailability is matrix-dependent and relatively low for ellagitannins (converted to urolithins by gut microbiota with high inter-individual variability); mineral absorption is partially inhibited by phytic acid content (~760 mg/100 g); γ-tocopherol has lower bioavailability than α-tocopherol due to preferential hepatic retention of α-form, though absolute tissue delivery remains meaningful given high concentrations.

## Dosage & Preparation

No clinically studied dosage ranges for 'Chandler' walnuts or standardized forms exist. Compositional data shows total phenolic content at approximately 5100 mg GAE/100 g in kernels. No standardization or clinical dosing guidelines available. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Omega Walnut is generally regarded as safe when consumed in typical dietary amounts (28–60 g/day), but tree nut allergy is a significant contraindication, with IgE-mediated reactions ranging from oral allergy syndrome to anaphylaxis. Juglone content may theoretically inhibit CYP450 enzymes, raising concern for interactions with warfarin, statins, and immunosuppressants, though clinical pharmacokinetic data specific to this cultivar are absent. The high ALA content may have additive anticoagulant effects when combined with antiplatelet drugs such as aspirin or clopidogrel. Pregnancy safety at dietary intake levels is considered acceptable, but supplemental or concentrated extract doses lack sufficient safety data for pregnant or lactating individuals.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses specifically on Juglans regia 'Chandler' were identified. General walnut research attributes health benefits to omega-3:omega-6 ratios and polyphenols, but lacks variety-specific human studies with PubMed PMIDs. Current research focuses solely on compositional analysis rather than clinical outcomes.

## Historical & Cultural Context

No historical or traditional medicine uses specific to Juglans regia 'Chandler' were identified, as this is a modern cultivar. General Juglans regia walnuts have been consumed for nutrition, but documented traditional systems or durations are absent from available research.

## Synergistic Combinations

Vitamin E, Fish Oil, Flaxseed Oil, Alpha-Lipoic Acid, Selenium

## Frequently Asked Questions

### How much omega-3 does Omega Walnut contain compared to regular walnuts?

Juglans regia 'Chandler' has been selectively cultivated to optimize polyunsaturated fatty acid composition, with ALA (18:3n-3) representing approximately 14–16% of total fatty acids in kernel lipids, comparable to or slightly exceeding standard commercial walnut varieties. The distinguishing characteristic is the favorable omega-3 to omega-6 ratio rather than an absolute ALA content dramatically different from other Juglans regia cultivars. Compositional studies confirm this ratio is higher in Chandler than many co-cultivated varieties, though head-to-head clinical comparisons are lacking.

### What are the antioxidant compounds in Omega Walnut kernels?

Omega Walnut kernels contain up to 5100 mg gallic acid equivalents (GAE) per 100 g, with the primary antioxidant compounds being hydrolyzable tannins (ellagitannins and gallotannins), flavonoids including quercetin and kaempferol, and the naphthoquinone juglone. Ellagitannins such as pedunculagin are hydrolyzed in the gut to ellagic acid and subsequently biotransformed by Gordonibacter and Ellagibacter species into urolithins A and B, which are the primary bioavailable antioxidant metabolites. These compounds neutralize reactive oxygen species through hydrogen atom transfer and single electron transfer mechanisms, as demonstrated in DPPH and FRAP in vitro assays.

### Can Omega Walnut supplements help reduce inflammation?

Preliminary evidence from compositional and in vitro data suggests Omega Walnut's ALA and ellagitannin content could reduce inflammation by suppressing NF-κB activation, lowering COX-2 expression, and shifting eicosanoid balance away from pro-inflammatory arachidonic acid metabolites. However, no clinical trials have been conducted specifically on Juglans regia 'Chandler' extracts or supplements in human subjects with inflammatory conditions. Extrapolation from general walnut RCTs suggests plausible benefit, but cultivar-specific anti-inflammatory claims require direct human trial validation before they can be made with confidence.

### Is Omega Walnut safe for people taking blood thinners like warfarin?

Omega Walnut contains high levels of ALA, which can exert mild antiplatelet and anticoagulant effects by reducing thromboxane A2 synthesis and platelet aggregation, potentially amplifying the action of anticoagulants such as warfarin or antiplatelet agents like aspirin and clopidogrel. Juglone may also inhibit CYP2C9, the primary enzyme responsible for warfarin metabolism, though this has not been studied pharmacokinetically in humans using Chandler-specific preparations. Individuals on anticoagulant therapy should consult a healthcare provider before significantly increasing Omega Walnut intake beyond typical dietary levels (28 g/day), and INR monitoring is advisable if consumption increases substantially.

### What does cytotoxic mean in the context of Omega Walnut research?

In Omega Walnut research, 'cytotoxic' refers to the ability of compounds such as juglone and ellagitannin-derived metabolites to selectively damage or kill aberrant cells in laboratory (in vitro) models, primarily through induction of oxidative stress and apoptotic pathways in cancer cell lines. Juglone specifically has been shown to inhibit Pin1 prolyl isomerase activity, arrest cell cycle progression at G2/M phase, and trigger mitochondrial-mediated apoptosis in HeLa and MCF-7 cell lines at micromolar concentrations. These findings are preliminary and derived entirely from cell culture experiments; no human clinical data support an anti-cancer application for Omega Walnut at this time.

### What is the difference between Omega Walnut 'Chandler' and other walnut varieties in terms of nutritional content?

The 'Chandler' cultivar of Juglans regia is specifically selected for its elevated omega-3 fatty acid content and polyphenol concentration compared to standard walnut varieties. This variety contains up to 5100 mg GAE/100g of polyphenols and higher γ-tocopherol levels (47.5-62.2 mg/100g), making it compositionally distinct from conventional walnuts. The breeding focus on omega-3:omega-6 PUFA ratios gives 'Chandler' walnuts a more favorable inflammatory profile at the nutrient level.

### Can I get sufficient omega-3s and polyphenols from eating whole Omega Walnuts instead of taking a supplement?

Whole Omega Walnuts are a concentrated dietary source of both omega-3 fatty acids and polyphenols, potentially allowing you to meet your needs through regular consumption of a small handful (approximately 1 ounce or 28g) daily. The polyphenols and gamma-tocopherol in whole walnuts are naturally bioavailable when consumed as part of food, though processing into supplements may alter their availability. For individuals seeking convenience or precise dosing, supplements may be preferred, but whole nuts provide additional fiber and nutrient synergies absent in isolated supplements.

### Is there clinical evidence in humans supporting the health benefits claimed for Omega Walnut supplements?

Most evidence for Omega Walnut benefits comes from compositional analysis and in vitro laboratory studies rather than human clinical trials. While the anti-inflammatory potential and antioxidant activity are supported by polyphenol content and cytotoxic preliminary data, no published human intervention studies specifically validate health outcomes for the 'Chandler' cultivar. Consumers should recognize that current marketing claims are based on ingredient composition and cellular research, not confirmed clinical efficacy in people.

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