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Tomato Ketchup and Gut Health
Tomato ketchup is a popular condiment made from processed tomatoes, sugar, vinegar, and spices. While it adds flavor to many dishes, its impact on gut health depends on its ingredients and individual sensitivities.
- Often high in histamine due to processed tomatoes
- May contain high-FODMAP ingredients like onion and garlic powder
- Contains added sugar, which can affect gut microbiota
- Low in fiber, minimal prebiotic benefit
- Possible allergens and additives in some brands
- Not suitable for paleo or keto diets
FODMAP Content in Tomato Ketchup
Tomato ketchup may contain high-FODMAP ingredients such as onion powder, garlic powder, and added fructose or high-fructose corn syrup. These can trigger symptoms in people with irritable bowel syndrome (IBS) or FODMAP sensitivities, especially in larger servings. Small amounts may be tolerated, but always check the label for specific ingredients.
| FODMAPs | Level | Portion Guidance |
|---|---|---|
|
Monosaccharides (Fructose)
|
Moderate |
|
|
Disaccharides (Lactose)
|
Low | — |
|
Fructooligosaccharides (Fructans)
|
Moderate |
|
|
Galactooligosaccharides (GOS)
|
Low | — |
|
Polyols (Mannitol)
|
Low | — |
|
Polyols (Sorbitol)
|
Low–Moderate |
|
Histamine and Tomato Ketchup
Tomato ketchup is considered high in histamine because it is made from processed tomatoes. It may also act as a histamine liberator, potentially triggering symptoms in people with histamine intolerance. Those sensitive to histamine should be cautious with ketchup and may need to avoid it entirely.
| Histamine & Related | Level | Portion Guidance |
|---|---|---|
|
Histamine Level
|
High |
|
|
Other Biogenic Amines
|
Low–Moderate |
|
|
Histamine Liberator
|
Moderate | — |
|
DAO Blocker
|
Low | — |
Added Sugar and Gut Microbiota
Most commercial ketchup contains significant amounts of added sugar, which can negatively affect the gut microbiota when consumed in excess. High sugar intake may promote the growth of less beneficial bacteria and contribute to gut discomfort or dysbiosis in sensitive individuals.
Fiber Content in Tomato Ketchup
Tomato ketchup is very low in fiber, with only about 0.3 grams per 100 grams. This minimal fiber content means ketchup does not provide meaningful prebiotic benefits or support for healthy bowel movements. Its contribution to overall dietary fiber intake is negligible.
Total Fiber
Allergens and Additives in Ketchup
Some ketchup brands may contain potential allergens such as gluten (from thickeners or malt vinegar), soy, celery, mustard, or even yeast extract. Additives like benzoates, sulfites, and flavor enhancers may also be present. People with food allergies or sensitivities should read labels carefully.
Details
- Use caution Wheat / Spelt
- Absent Rye
- Use caution Barley
- Absent Oats
Details
- Absent Crabs
- Absent Prawns
- Absent Shrimp
- Absent Lobsters
- Absent Crayfish
Details
- Absent Almonds
- Absent Brazil Nuts
- Absent Cashews
- Absent Hazelnuts
- Absent Macadamia Nuts
- Absent Pecans
- Absent Pistachios
- Absent Walnuts
Details
- Absent Clams
- Absent Mussels
- Absent Octopus
- Absent Oysters
- Absent Snails
- Absent Squid
Nightshades and Sensitivities
Tomato ketchup is made primarily from tomatoes, a member of the nightshade family. Some individuals with sensitivities to nightshades may experience gut symptoms such as bloating or discomfort after consuming ketchup. This is especially relevant for those with autoimmune or inflammatory gut conditions.
Preparation and Ingredient Variability
The gut impact of ketchup can vary depending on the brand and recipe. Some versions use honey or alternative sweeteners, while others add chili, lemon juice, or more spices. Homemade ketchup may be better tolerated if you control the ingredients and avoid common triggers.