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Ingredient checker

Hidden FODMAP Ingredients Checker

Understand unfamiliar ingredient names and aliases before reviewing a product. Browse the reference below, or look up a short ingredient list.

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Paste an ingredient list

Look up common ingredient names and see why they are flagged. Your text stays in your browser.

Result

Paste ingredients above, then click Check ingredients to check for hidden garlic, onion, inulin, polyols, lactose, fruit concentrates, and similar ingredients.

Common names behind ingredient flags

This is the dictionary used by the checker. It is not exhaustive; an unlisted ingredient has not been assessed.

Garlic

Label names: garlic, garlic puree, garlic paste, dehydrated garlic

Garlic is a common high-fructan ingredient and can be hidden in sauces, seasonings, marinades, and stocks.

Garlic powder

Label names: garlic powder, garlic granules, granulated garlic

Dried garlic seasonings are concentrated and are often risky even when they appear low in the ingredient list.

Garlic-infused oil

Label names: garlic infused oil, garlic-infused oil, garlic oil

Garlic-infused oil needs context. Oil infused without garlic pieces may be lower risk, but products with garlic solids or vague preparation details should be reviewed closely.

Onion

Label names: onion, white onion, red onion, yellow onion, onion puree

Onion is a common fructan source and frequently appears in broths, dressings, spice blends, and savory snacks.

Onion powder

Label names: onion powder, onion flakes, dehydrated onion, granulated onion

Onion powder and dried onion are concentrated fructan sources often used in packaged foods.

Inulin

Label names: inulin, chicory inulin, agave inulin

Inulin is a prebiotic fiber and fructan that can be difficult for many people with IBS or SIBO symptoms.

Chicory root

Label names: chicory root, chicory root fiber, chicory fiber, chicory extract

Chicory root fiber is commonly added to bars, cereals, and drinks as a prebiotic fiber.

FOS

Label names: FOS, fructooligosaccharides, fructo-oligosaccharides

FOS are fructan fibers and may increase stacking risk in small packaged foods or supplements.

GOS

Label names: GOS, galactooligosaccharides, galacto-oligosaccharides

GOS are fermentable carbohydrates also found in legumes and some added prebiotic blends.

Sorbitol

Label names: sorbitol, E420

Sorbitol is a polyol sweetener that can be a trigger in sugar-free products and some fruit-based foods.

Mannitol

Label names: mannitol, E421

Mannitol is a polyol sweetener and can also appear naturally in some vegetables and mushrooms.

Xylitol

Label names: xylitol, E967

Xylitol is a sugar alcohol commonly used in gum, mints, and sugar-free sweets.

Maltitol

Label names: maltitol, maltitol syrup, E965

Maltitol is a polyol sweetener often found in sugar-free chocolate, protein bars, and candies.

Lactose

Label names: lactose

Lactose may be tolerated differently by different people and depends on serving size and lactase activity.

Milk powder

Label names: milk powder, skim milk powder, whole milk powder, nonfat dry milk

Milk powder can add lactose to baked goods, sauces, seasoning blends, and chocolate products.

Whey

Label names: whey, whey powder, sweet whey, whey solids

Whey ingredients may contain lactose unless specifically processed to remove it.

Apple juice concentrate

Label names: apple juice concentrate, concentrated apple juice, apple puree concentrate

Apple concentrate can add excess fructose to snacks, sauces, drinks, and fruit-sweetened products.

Pear juice concentrate

Label names: pear juice concentrate, concentrated pear juice, pear puree concentrate

Pear concentrate is commonly used as a fruit sweetener and may be high in excess fructose and polyols.

High fructose corn syrup

Label names: high fructose corn syrup, HFCS, glucose-fructose syrup, fructose-glucose syrup

Fructose-heavy syrups may be a concern depending on the formula and serving size.

Honey

Label names: honey

Honey is often high in excess fructose and can appear in granola, sauces, marinades, and drinks.

Agave syrup

Label names: agave, agave syrup, agave nectar

Agave syrup is typically fructose-heavy and may be difficult for people sensitive to excess fructose.

Natural flavors

Label names: natural flavor, natural flavors, natural flavour, natural flavours

Natural flavors are vague label terms. They are not automatically high FODMAP, but they can hide garlic, onion, dairy, fruit, or sweetener components depending on the product.

Vague seasonings

Label names: spices, seasoning, seasonings, spice blend, flavoring, flavouring

Vague seasoning terms are not automatically high FODMAP, but they may include garlic, onion, dairy solids, or sweeteners when the label does not list every component.

Wheat

Label names: wheat, wheat flour, whole wheat flour, semolina, durum wheat

Wheat-based ingredients can contribute fructans. Risk depends on serving size and the full meal.

Rye

Label names: rye, rye flour

Rye can contribute fructans, especially in larger portions of bread or crackers.

Beans

Label names: beans, black beans, kidney beans, pinto beans, navy beans

Beans commonly contain GOS. Canning and small portions may reduce risk for some people but do not remove uncertainty.

Lentils

Label names: lentils, red lentils, green lentils, brown lentils

Lentils can contribute GOS. Canned and rinsed lentils may be easier for some people in small portions.

Guide

How to use this Low FODMAP tool well

Use the calculator result as a starting point, then read the context below before making a food decision.

How the hidden ingredient checker works

Many packaged foods look simple on the front of the package but hide FODMAP-heavy ingredients in the label. This checker scans the pasted text against a local dictionary of common triggers such as garlic, onion, added prebiotic fibers, lactose-containing dairy powders, fruit concentrates, and sugar alcohols.

  • Paste the ingredient list exactly as it appears on the package.
  • The tool normalizes spacing and punctuation before matching known aliases.
  • Detected items show a cautious risk level, likely FODMAP category, and a short explanation.

Ingredients this first version is designed to catch

The starter dictionary focuses on ingredients that frequently appear in sauces, snacks, spice blends, protein bars, cereals, dairy products, and sweetened drinks. It is intentionally conservative: a matched ingredient is a reason to review the label, not a diagnosis or a guarantee that symptoms will happen.

  • Fructan sources: garlic, onion, garlic powder, onion powder, inulin, chicory root, FOS, wheat, and rye.
  • GOS sources: GOS blends, beans, and lentil-based ingredients.
  • Polyols and sweeteners: sorbitol, mannitol, xylitol, maltitol, honey, agave, and fruit concentrates.
  • Lactose concerns: lactose, milk powder, skim milk powder, whey, and similar dairy solids.

How to interpret a match

A match means the ingredient appears in the local dictionary. The real-world risk depends on how much is present, where it appears in the ingredient order, the serving you eat, and your personal tolerance. A tiny amount in a long label may feel different from a sauce or snack where the ingredient is central.

  • High risk means the ingredient is commonly problematic for many Low FODMAP eaters.
  • Medium risk means portion size or processing often matters.
  • Unknown risk means the term needs more context than a static matcher can provide.

When to use the app instead

This page is useful for quick browser checks, but shopping decisions often happen while holding a package in a store. The app is better for repeated checks because you can scan or type foods faster, review likely concern notes, and save the result for later comparison.

FAQ

Common questions

Does this detect every high FODMAP ingredient?

No. It uses a starter local dictionary for common hidden ingredients. Labels can use vague terms, and serving size still matters.

Is garlic-infused oil flagged as garlic?

Recognized garlic-infused oil phrases get an uncertain preparation note. Garlic pieces or powder listed separately can still be flagged. Read the full formulation; this is not a product certification.

Does this use AI or upload my label?

No. The text is checked locally in your browser against static TypeScript data.

Can I use this for SIBO?

It can support food label review, but it is general guidance only and is not a SIBO treatment plan.

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Scan a photo or type food to review likely FODMAP risk, possible concern ingredients, and lower-risk swap ideas.