Back to Low Fermentation food checker
ketchup
Condiments & Sauces
Is ketchup high in low fermentation?
Is ketchup high or low in low fermentation? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.
Related checkers
Compare ketchup across criteria
Sensitivity notes
Why low fermentation food checker matters
SIBO (Small Intestinal Bacterial Overgrowth) diets focus on reducing fermentable foods that feed bacteria in the small intestine. Low-fermentation foods help manage symptoms like bloating, gas, and abdominal discomfort.
- Low-fermentation eating reduces food for overgrown bacteria
- Meal spacing (4-5 hours) allows the MMC to clear the gut
- Avoid grazing - structured meals are better
- Some find the elemental diet helpful under medical supervision
- Address underlying causes with your healthcare provider
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
Explore related in Condiments & Sauces
Compare similar foods to build a personalized list of swaps that work for your system.
Low Fermentation Guide
Everything you need to know about low fermentation sensitivity and smart food choices.
SIBO (Small Intestinal Bacterial Overgrowth) diets focus on reducing fermentable foods that feed bacteria in the small intestine. Low-fermentation foods help manage symptoms like bloating, gas, and abdominal discomfort.
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 Low Fermentation sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in low fermentation and may trigger symptoms:
View full list
If you're sensitive to Low Fermentation, consider these strategies:
- 1Low-fermentation eating reduces food for overgrown bacteria
- 2Meal spacing (4-5 hours) allows the MMC to clear the gut
- 3Avoid grazing - structured meals are better
- 4Some find the elemental diet helpful under medical supervision
- 5Address underlying causes with your healthcare provider
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 Low Fermentation?
Low Fermentation: moderate signal - portion size matters.
Can I still eat ketchup if I'm sensitive to Low Fermentation?
Try smaller portions and space it out.
What else should I check?
Check AIP, Reflux Diet, and Specific Carbohydrate next for a fuller picture.