
collard greens
Vegetables
Is collard greens high in nickel?
Find out whether collard greens 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 collard greens
Collard greens are the answer to the question people usually arrive with: they are a sturdy cooked green that grades clean on oxalate, which spinach and chard do not. They also grade clean on histamine, salicylates, nickel and gluten. The only real notes are mild fructans from the cabbage family and the fact that the traditional pot of greens is rarely just greens.
Watch for
Mild fructan content from being a brassica, so a very large bowl of a long simmered pot can still produce gas even though the overall FODMAP grade is clean / The classic Southern preparation simmers them with smoked ham hock, bacon or salt pork, and cured smoked meat is a strong histamine and nitrite source. If a plate of greens sets you off, suspect the pork and the pot likker before the leaf / The vinegar or hot sauce splash at the table adds its own histamine and salicylate load / Collards are one of the richest vitamin K foods there is. If you take warfarin, the goal is steady intake rather than avoidance, and that is a conversation for your prescriber
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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 optionsThese foods are high in nickel and may trigger symptoms:
View full listIf 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 collard greens high in Nickel?
Nickel: low signal for most people.
Can I still eat collard greens if I'm sensitive to Nickel?
Usually fine in normal portions.
What else should I check?
Check Fructans, Inflammation, and Histamine next for a fuller picture.





