Eating at Subway with celiac disease, IBS or food allergies

It depends on what you need to avoid, and Subway is open about the limits. As of October 2026, Subway’s US allergen chart (dated October 2026) lists egg, fish, milk, peanuts, sesame, shellfish, soybeans, tree nuts, wheat and gluten, and sulfites for each bread, protein, cheese, sauce and vegetable. It also says, in bold, that individual food items may come in contact with one another during food preparation, that this is not reflected on the chart, and asks you to tell the sandwich artist if you have a food allergy.

Subway’s allergen page adds that, because of how its breads and other items are prepared in the restaurant, they may come into contact with other items containing egg, fish, dairy, peanut, sesame, shellfish, soy, tree nuts, wheat and/or sulfites that are not part of the recipe. So the chart tells you what is in each ingredient. It does not tell you that a sandwich is free from traces of anything else.

These are the marks on Subway’s US chart when we checked it in October 2026. They describe what Subway lists. They are not recommendations, and they can change.

Subway explains that wheat and gluten share one column because all of its gluten-containing items contain wheat. Even so, the ingredient guide shows malted barley flour in the Artisan Italian and Hearty Multigrain breads and rye in the multigrain. The Celiac Disease Foundation lists malted barley flour among sources of gluten, so reading full ingredient lists helps you catch barley and rye as well as wheat.

Where the chart shows an asterisk for soy, Subway explains that the ingredient only contains highly refined oil from that source, and that the FDA exempts highly refined oils from allergen labeling. The FDA’s food allergy page confirms that exemption. If you’ve been told to avoid refined soybean oil, ask your allergist what that means for you.

A footnote on Subway’s October 2026 chart says its gluten-free bread is manufactured in a gluten-free facility. The same footnote says other menu items and ingredients in its restaurants contain gluten and are prepared on shared equipment, so Subway cannot guarantee that its menu items are 100% gluten-free. The gluten-free bread did not appear as its own row on the chart we checked, so ask your restaurant whether it’s available.

Beyond the bread, a Subway sandwich is assembled on a shared line, and Subway’s own statements say contact between items is possible. Some fillings also contain wheat. As of October 2026, the chart lists wheat for the Meatballs & Marinara (the meatballs include bread crumbs), the grilled chicken with Sweet Onion Teriyaki sauce, the Sweet Onion Teriyaki sauce itself, the chicken noodle and broccoli cheddar soups, and the cheese pizza. Subway’s allergen page also lists wheat for chicken tenders, and milk, soy and wheat for macaroni and cheese, which it says are testing in select stores.

Whether a shared-line sandwich shop fits your celiac disease is a decision to make with your gastroenterologist or dietitian. Our guides to eating out with celiac disease and what a gluten-free label does and doesn’t tell you explain why a gluten-free ingredient isn’t the same as a meal prepared without cross-contact.

Bacon and several deli meats are marked for added nitrites or nitrates, which is a separate column on Subway’s chart rather than an allergen. Subway’s cookies are listed with several allergens, and the chart notes that because of how they are displayed, they may come in contact with other nut-containing cookies.

If you have a milk allergy, FARE explains that peeling cheese off food is direct cross-contact. Ask for the sandwich to be made without cheese from the start, and for fresh gloves.

Monash University lists onion, garlic, honey, wheat bread and cow’s milk among higher-FODMAP foods, and lettuce, cucumber, carrot and potato among lower-FODMAP ones. Based on Subway’s US ingredient guide as of October 2026:

• Onion: red onions as a vegetable topping; dehydrated onion or onion powder in the Sweet Onion Teriyaki, Baja Chipotle, Peppercorn Ranch, Honey Mustard, Hot Honey and MVP Parmesan Vinaigrette, and in the meatball seasoning and rotisserie-style chicken seasoning.
• Garlic: in the Roasted Garlic Aioli, most creamy sauces, the BBQ sauce, Frank’s RedHot Buffalo sauce, the yellow mustard, the meatballs and the veggie patty.
• Honey: in the Honey Mustard and Hot Honey sauces.
• Wheat: in every bread and wrap on the chart except the gluten-free bread noted in the footnote.
• Lactose: in the cheeses and in milk-based sauces such as ranch and Baja Chipotle.

Many vegetables on the line, such as lettuce, cucumbers, spinach and green peppers, show no allergen marks, and you choose each one yourself. Asking for no onion and choosing oil and vinegar, or a sauce on the side, is a common starting point. Portion matters with FODMAPs, so a 6-inch may sit differently from a footlong. Our guides to hidden garlic and onion and eating out with IBS have more ideas.

1. Look up every component first on Subway’s current US allergen chart and ingredient guide, linked from its Nutrition & Allergies page.
2. Tell the sandwich artist at the start about any allergy or celiac disease, as Subway asks. Do this even when you order in the app.
3. Ask for fresh gloves and, if it matters for your allergy, for a fresh knife and a wiped prep surface.
4. Ask for ingredients from fresh containers if you’re worried about spills between bins on the line.
5. Ask how bread is toasted if contact with other breads matters to you.
6. If you’re unsure, skip it. It’s fine to choose something simpler, or eat elsewhere.

Phrases you could use:

• "I have celiac disease. Is the gluten-free bread available here, and could you change gloves and use a fresh knife?"
• "I have a milk allergy. Could you make this without cheese from the start?"
• "I have a sesame allergy. Which sauces have sesame, and could you use a new squeeze bottle or skip the sauce?"
• "Could I have it with no onion and oil and vinegar instead of sauce?"

For more on explaining your needs, see talking to restaurant staff about allergies.