Back to Nickel food checker
corn
Grains
Is corn high in nickel?
Is corn high or low in nickel? 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 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
- First-draw water from taps may be higher in nickel - let it run
- Vitamin C may help reduce nickel absorption
Sensitivities
What corn contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where corn fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about corn
Corn is naturally gluten-free, so the common worry that it contains gluten is a myth, though corn products milled in wheat facilities can pick up gluten by cross-contact. The real triggers are different: corn is high in free glutamates, the same savory compound behind MSG reactions, and moderately high in salicylates. It is also high in lectins and sits on the pro-inflammatory side, which is why some people feel bloated or headachy after corn even though it passes as a safe grain.
Watch for
- High in free glutamates, so it can provoke the same headaches or flushing that people blame on MSG
- Moderately high in salicylates, a trigger if you react to aspirin or salicylate-rich foods
- High in lectins, which can bother people who are sensitive to them
- Naturally gluten-free, but processed corn products can be cross-contaminated with wheat, so check labels if you have celiac disease
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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:
View all safe options
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 corn high in Nickel?
Nickel: low signal for most people.
Can I still eat corn if I'm sensitive to Nickel?
Usually fine in normal portions.
What else should I check?
Check Glutamates, Lectin, and AIP next for a fuller picture.