Roma / Plum Tomato (Canned with Juice)
Vegetables · Vegetables
Canned Roma or plum tomatoes with their juice are low FODMAP at 100 g, about half a cup, in the Monash app. The 182 g portion is moderate in fructose. At 244 g, fructose is high and fructans are moderate. The liquid is included in this entry.
Serving sizes for roma / plum tomato (canned with juice)
Canned Roma/plum tomatoes with juice: 100 g green, 182 g amber and 244 g red. Include the juice when matching this food.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1/2 cup | 100 g | Fructans 0.04 g | |
| 1 cup | 182 g | Fructans 0.07 g | |
| 1 1/4 cups | 244 g | Fructose 0.15 g |
Breakdown for 0.5 cups
Is roma / plum tomato (canned with juice) low FODMAP?
All six groups are green at the 100 g reference. Fructose turns amber at 182 g, approximately one cup, while the other indicators stay green. At 244 g, around one and a quarter cups, fructose is red and fructans join it at amber; lactose, mannitol, sorbitol and GOS remain green.
Roma / Plum Tomato (Canned with Juice) and IBS: what to know
A tomato-based sauce can contain much more than tomatoes, so note the canned ingredient separately from onion, garlic, stock and other additions. Also account for how much of a shared pot you eat. A green amount of canned Roma tomatoes does not assign a rating to every finished pasta sauce.
Gut-friendly ways to eat roma / plum tomato (canned with juice)
Weigh the tomatoes together with their accompanying juice before adding them to a recipe. If the sauce reduces during cooking, calculate your share from the starting ingredients rather than assuming its final weight equals the canned-food weight. Compare canned round whole tomatoes or raw Roma tomatoes for those distinct forms.
Frequently asked questions
Should I drain canned Roma tomatoes for this reference?
No. The source explicitly says with juice. A drained-only measurement would describe a different preparation from the one checked.
Are canned round tomatoes interchangeable for portion purposes?
They have a separate app entry. Both canned forms should be matched by their named variety and preparation when comparing the larger serving references.
Is a reduced tomato sauce measured by its final weight?
The source portion is the canned tomato-and-juice ingredient. Reduction changes the finished sauce weight, so keep track of how much of that original ingredient is in your share.
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Sources and editorial notes
- Monash University FODMAP Diet App
Monash University FODMAP Diet app entry “Tomato, Roma / plum, canned, with juice” checked directly on 27 September 2026. The portion weights, traffic-light ratings and FODMAP groups discussed here were verified in matching detail panels. Numerical FODMAP concentration estimates elsewhere in the catalogue were not validated by this check.