corn
Grains
Is corn high in sulfites?
Find out whether corn is high or low in sulfites, see its exact rating, and check its FODMAP, salicylate, oxalate and diet compatibility all in one place.
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Sensitivity notes
Why sulfites food checker matters
Sulfites are preservatives found in wine, dried fruits, and processed foods. They can trigger asthma symptoms, headaches, and allergic reactions in sensitive individuals.
- Dried fruits are often high in sulfites unless labeled 'unsulfured'
- Wine, especially white, commonly contains sulfites
- Fresh foods are naturally sulfite-free
Triggers
Diets
Serving size, prep, and portion notes for 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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Sulfites Guide
Everything you need to know about sulfites sensitivity and smart food choices.
Sulfites are preservatives found in wine, dried fruits, and processed foods. They can trigger asthma symptoms, headaches, and allergic reactions in sensitive individuals.
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 Sulfites sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in sulfites and may trigger symptoms:
View full list
If you're sensitive to Sulfites, consider these strategies:
- 1Dried fruits are often high in sulfites unless labeled 'unsulfured'
- 2Wine, especially white, commonly contains sulfites
- 3Fresh foods are naturally sulfite-free
- 4Check medication labels - some contain sulfites
- 5Look for 'contains sulfites' on labels (required above 10ppm)
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 Sulfites?
Sulfites: low signal for most people.
Can I still eat corn if I'm sensitive to Sulfites?
Usually fine in normal portions.
What else should I check?
Check Glutamates, Lectin, and Inflammation next for a fuller picture.