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walnuts
Nuts & Seeds
Is walnuts high in oxalates?
Is walnuts high or low in oxalates? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.
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Sensitivity notes
Why oxalates food checker matters
Oxalates are compounds found in many plant foods that can bind with calcium to form crystals. High oxalate intake may contribute to kidney stones in susceptible individuals and can cause other symptoms in those with oxalate sensitivity.
- Stay well-hydrated to help prevent oxalate crystal formation
- Pair high-oxalate foods with calcium-rich foods to bind oxalates
- Cooking and boiling can reduce oxalate content in some foods
- Spread oxalate intake throughout the day rather than one large dose
- Consider probiotics - some gut bacteria break down oxalates
Sensitivities
What walnuts contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where walnuts fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about walnuts
Walnuts are genuinely anti-inflammatory thanks to their plant omega-3s, but they are also very high in oxalate and high in nickel, so the same handful that is good for your heart can be a real problem if you are prone to kidney stones or have a nickel allergy. That trade-off, a strong nutrition upside sitting on top of two clear triggers, is what sets walnuts apart from a plain snack nut.
Watch for
- Very high in oxalate, one of the higher-oxalate nuts, worth limiting if you are managing calcium-oxalate kidney stones
- High in nickel, a common flare trigger for people with systemic nickel allergy (nut, seed and wholegrain foods tend to be nickel-rich)
- A tree nut, so a top allergen and not eosinophilic-oesophagitis friendly if nuts are on your elimination list
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Oxalates Guide
Everything you need to know about oxalates sensitivity and smart food choices.
Oxalates are compounds found in many plant foods that can bind with calcium to form crystals. High oxalate intake may contribute to kidney stones in susceptible individuals and can cause other symptoms in those with oxalate sensitivity.
Sensitivity varies widely. What triggers one person may be fine for another. Track your reactions to find your personal threshold.
These foods are generally well-tolerated for Oxalates sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in oxalates and may trigger symptoms:
View full list
If you're sensitive to Oxalates, consider these strategies:
- 1Stay well-hydrated to help prevent oxalate crystal formation
- 2Pair high-oxalate foods with calcium-rich foods to bind oxalates
- 3Cooking and boiling can reduce oxalate content in some foods
- 4Spread oxalate intake throughout the day rather than one large dose
- 5Consider probiotics - some gut bacteria break down oxalates
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
Want personalized tracking?
Download Triggerbites to log meals, track symptoms, and discover your unique triggers.
Get the AppFAQ
Is walnuts high in Oxalates?
Oxalates: higher signal - consider smaller servings or swaps.
Can I still eat walnuts if I'm sensitive to Oxalates?
Best to avoid or test carefully with a small amount.
What else should I check?
Check Tree Nuts, AIP, and EoE Compatible next for a fuller picture.