Tortilla (wheat/flour)
Grains · Bread
One small wheat tortilla (35 g) is rated green and one large tortilla (70 g) is rated amber, which makes the diameter of the wrap the entire decision. The catch is that the burrito-style rounds stacked in supermarkets are the large ones, and a lunch wrap you buy ready made is almost certainly built on one.
Last updated 4 September 2026Serving sizes for tortilla (wheat/flour)
One small tortilla (35 g) is green; one large (70 g) is amber. Go by the weight on the packet, not the word on the front.
Tested serving sizes
| Serving | Amount | Main FODMAP | Rating |
|---|---|---|---|
| 1 small tortilla | 35 g | Fructans 0.12 g | |
| 1 large tortilla | 70 g | Fructans 0.24 g |
Breakdown for 0.5 tortillas
Is tortilla (wheat/flour) low FODMAP?
Fructans come across from the wheat, at 0.12 g in the small tortilla and 0.24 g in the large, with GOS behind them at 0.04 g and 0.08 g. Nothing else appears. The two sets of figures are exact doubles because the two tortillas are exact doubles, 35 g against 70 g of the same dough pressed wider. That is unusually tidy, and it is useful: you can read any packet of wraps off its weight per tortilla, which is a number the nutrition panel has to give you.
Tortilla (wheat/flour) and IBS: what to know
Tortilla sizing is not standardised, and the wording on the front of the packet does most of the lying, since one brand’s “regular” can weigh close to another brand’s “large”. Weigh one at home once and you will know which shelf you have been buying from ever since. The filling then decides the rest of the meal, because a wrap is a delivery system for the ingredients that most often cause trouble: onion-heavy salsa, hummus, garlic mayonnaise, a scatter of beans. An amber wrap with a clean filling usually sits better than a green one loaded with dips.
Gut-friendly ways to eat tortilla (wheat/flour)
Corn tortillas are rated green at two small ones, which is the swap worth knowing, because it gives you a taco dinner instead of a single wrap. Staying with wheat works if you stop the tortilla being the bulk of the meal: fill a small one generously with chicken, cheese, lettuce, tomato and coriander, then put rice or a salad beside it rather than reaching for a second round. One thing not to talk yourself into is that two small tortillas are gentler than one large. They weigh the same and carry the same load.
Frequently asked questions
How big is a low FODMAP tortilla?
35 g, which is the small taco-sized round rather than the burrito wrap, and at that size it rates green. Double the weight to 70 g and you are holding a large wrap and an amber rating, a moderate serve rather than an excluded one. Because brands name their sizes however they please, the nutrition panel is a far more reliable guide than the label.
Can I eat a wrap for lunch with IBS?
Yes, once the size is sorted out. A shop-bought wrap is normally made on a large tortilla, so the bread alone is an amber serve before anything goes inside it, and inside is where the onion and garlic hide. Made at home on a small tortilla with a filling you controlled, a wrap is a straightforward green lunch.
Are corn or wheat tortillas better for IBS?
Corn, if the portion is what you care about: corn tortillas are rated green at two, where wheat gives you one small round. Corn tortillas are stiffer and crack if you roll them cold, so they suit tacos better than burritos. Wheat wins on handling, corn wins on how much you get to eat, and neither choice is really about gluten.
Is a tortilla better than bread for IBS?
It depends which bread. A small wheat tortilla is green where one slice of wholemeal bread is rated amber, so the wrap can genuinely be the lighter choice. Sourdough wheat is rated green at two slices, which is a whole sandwich, so it beats a large wrap on portion. Compare what you would actually eat, not what the shelf label suggests.
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