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ketchup
Condiments & Sauces
Is ketchup high in gluten?
Is ketchup high or low in gluten? 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 gluten food checker matters
Gluten is a protein found in wheat, barley, rye, and their derivatives. People with celiac disease, gluten sensitivity, or wheat allergy need to avoid gluten to prevent digestive and systemic symptoms.
- Learn to read labels carefully - gluten hides in many products
- Be aware of cross-contamination in shared kitchens and restaurants
- Look for certified gluten-free products for safety
- Oats are naturally gluten-free but often cross-contaminated
- Give your gut time to heal - improvement may take months
Sensitivities
What ketchup contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where ketchup fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about ketchup
Ketchup is the textbook stacked trigger: no single ingredient in it is extreme, but it borders on a problem across an unusual number of them at once. It is made from concentrated tomatoes (nightshade plus histamine), cooked and aged (histamine and glutamate build up), sweetened with high-fructose syrup (excess fructose and FODMAPs) and often preserved with sulfites. Individually each is a moderate load; together, in the amount people actually use, they can push a sensitive person over the edge when a plain tomato would not. If you react to ketchup but tolerate fresh tomato, the processing is usually why.
Watch for
- Concentrated tomato makes it a nightshade and moderately high in histamine, two triggers in one spoonful
- Cooking and ageing raise free glutamate (a savoury, MSG-like load) and histamine beyond that of a fresh tomato
- Sweetened with high-fructose corn syrup, so it carries excess fructose and a moderate FODMAP load
- Often preserved with sulfites, a further additive trigger, and it is pro-inflammatory overall thanks to the sugar and processing
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Gluten Guide
Everything you need to know about gluten sensitivity and smart food choices.
Gluten is a protein found in wheat, barley, rye, and their derivatives. People with celiac disease, gluten sensitivity, or wheat allergy need to avoid gluten to prevent digestive and systemic 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 Gluten sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in gluten and may trigger symptoms:
View full list
If you're sensitive to Gluten, consider these strategies:
- 1Learn to read labels carefully - gluten hides in many products
- 2Be aware of cross-contamination in shared kitchens and restaurants
- 3Look for certified gluten-free products for safety
- 4Oats are naturally gluten-free but often cross-contaminated
- 5Give your gut time to heal - improvement may take months
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 ketchup high in Gluten?
Gluten: low signal for most people.
Can I still eat ketchup if I'm sensitive to Gluten?
Usually fine in normal portions.
What else should I check?
Check AIP, Reflux Diet, and Specific Carbohydrate next for a fuller picture.