dark chocolate
Sweeteners
Is dark chocolate high in nickel?
Find out whether dark chocolate is high or low in nickel, see its exact rating, and check its FODMAP, salicylate, oxalate and diet compatibility all in one place.
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Sensitivity notes
Why nickel food checker matters
Nickel is a metal found in many foods including chocolate, nuts, and leafy greens. People with nickel allergy (often showing as contact dermatitis) may also react to dietary nickel, causing skin and digestive symptoms.
- Avoid cooking acidic foods in stainless steel cookware
- Canned foods often have higher nickel content
- Chocolate, nuts, and legumes are common high-nickel foods
Triggers
Diets
Serving size, prep, and portion notes for dark chocolate
Dark chocolate has real upsides, since its cocoa flavanols make it anti-inflammatory, but that same cocoa is high in histamine, a histamine liberator, high in nickel and high in oxalate, with a moderate dose of caffeine. That is why a couple of squares can bring on a migraine, flushing or a nickel-type skin flare in sensitive people even though it is one of the better-for-you sweets.
Watch for
High in histamine and a histamine liberator, a well-known migraine and flushing trigger / High in nickel, cocoa is one of the classic foods that flares systemic nickel allergy / High in oxalate, worth portioning on a kidney-stone diet / Contains caffeine, less than coffee but enough to matter for caffeine-sensitive people
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Nickel Guide
Everything you need to know about nickel sensitivity and smart food choices.
Nickel is a metal found in many foods including chocolate, nuts, and leafy greens. People with nickel allergy (often showing as contact dermatitis) may also react to dietary nickel, causing skin and digestive symptoms.
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 Nickel sensitivity:
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These foods are high in nickel and may trigger symptoms:
View full list
If you're sensitive to Nickel, consider these strategies:
- 1Avoid cooking acidic foods in stainless steel cookware
- 2Canned foods often have higher nickel content
- 3Chocolate, nuts, and legumes are common high-nickel foods
- 4First-draw water from taps may be higher in nickel - let it run
- 5Vitamin C may help reduce nickel absorption
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 dark chocolate high in Nickel?
Nickel: higher signal - consider smaller servings or swaps.
Can I still eat dark chocolate if I'm sensitive to Nickel?
Best to avoid or test carefully with a small amount.
What else should I check?
Check Histamine, Histamine Liberators, and Oxalates next for a fuller picture.