Are tomatoes low FODMAP?
Moderate FODMAP, watch portions
Tomatoes are moderate FODMAP: small portions may be fine, but larger servings can add up.
Moderate FODMAPLast reviewed October 24, 2026
Good to know
Tomatoes are moderate FODMAP because of their fructose, so a few slices in a salad are usually fine while a big bowl of tomato soup is more likely to cause trouble.
Canned tomatoes and tomato paste are often easier, since a small amount goes a long way in a sauce. The bigger problem with tomato-based dishes is usually the onion and garlic cooked with them, so make the base with garlic-infused oil instead.
Some people react to tomatoes for reasons that have nothing to do with FODMAPs, such as acidity and reflux. A food diary helps you tell the difference.
Tomatoes on a low FODMAP diet
- Small amounts of tomatoes are usually fine during elimination, but larger servings move into high FODMAP territory.
- Avoid pairing them with other moderate or high FODMAP foods in the same meal, which is where stacking matters most.
- If they bother you, note them in a food diary and test them again during reintroduction.
Which FODMAPs are in tomatoes
Fructose: Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel. Read more about fructose malabsorption.
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Low FODMAP
High FODMAPCommon questions
Are tomatoes low FODMAP?
Tomatoes are moderate FODMAP: small portions may be fine, but larger servings can add up. They contain excess fructose.
Which FODMAPs are in tomatoes?
Tomatoes contain excess fructose. Excess fructose means the food has more fructose than glucose. That extra fructose is absorbed less efficiently and can draw water into the bowel.
Can I have tomatoes during the low FODMAP elimination phase?
In small amounts, usually yes. Larger servings can trigger symptoms, especially alongside other FODMAP sources.
How do I test tomatoes during reintroduction?
Tomatoes belong with the excess fructose group, which is often tested with honey or mango. Test one group at a time, starting small and increasing over a few days, and note how you feel.
Tomatoes in our guides
Category
Vegetables & Mushrooms · Vegetable
FODMAP levels in the Stummy database are based on published FODMAP research and describe typical servings. Your own tolerance can differ. Looking for something else? Check any food in the FODMAP checker or browse the full food list.
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