Standard salsa is not low FODMAP. The two biggest culprits are onion and garlic, which appear in nearly every jarred and restaurant salsa recipe. Both are among the highest FODMAP foods tested, and even small amounts can trigger symptoms. The good news: with a few simple swaps, you can make or buy salsa that fits a low FODMAP diet without sacrificing much flavor.
Why Regular Salsa Is High FODMAP
Tomatoes, the base of most salsas, are actually low FODMAP in reasonable servings. The problem is everything else that goes in with them. Onion and garlic are staples in traditional salsa, and both are loaded with fructans, a type of carbohydrate that ferments in the gut and drives symptoms like bloating, gas, and abdominal pain in people with IBS.
Garlic is particularly concentrated. Even a single clove blended into a batch of salsa distributes fructans throughout the entire jar. Onion powder and garlic powder, common in store-bought versions, are actually worse than their fresh counterparts because they’re more concentrated by weight. If you see “onion powder,” “garlic powder,” “dehydrated onion,” or “natural flavors” on a salsa label, assume it’s high FODMAP.
Some commercial salsas also contain high fructose corn syrup or other sweeteners that add excess fructose, another FODMAP category. Even brands that seem simple and fresh often sneak in onion or garlic as a secondary ingredient.
Reading Salsa Labels
If you’re scanning the grocery store shelf, flip the jar around and check the ingredient list carefully. The ingredients to watch for include onion (in any form), garlic (in any form), high fructose corn syrup, agave nectar, and honey. All of these are high FODMAP. “Spices” or “natural flavors” listed without specifics can also hide onion or garlic derivatives, so those vague labels are worth treating with caution.
Ingredients that are safe include tomatoes, tomato paste, jalapeños, green chilies, lime juice, cilantro, vinegar, cumin, salt, and black pepper. Lime juice and cilantro are both low FODMAP, and most common spices (cumin, paprika, oregano) are fine in the amounts used in salsa.
Store-Bought Low FODMAP Options
Fody Foods makes a mild salsa specifically formulated without onion or garlic. It’s one of the few commercial salsas designed for the low FODMAP diet and is widely available online. If your local store doesn’t carry specialty FODMAP-friendly brands, you’re better off making your own than trying to find a conventional brand that happens to skip onion and garlic. Very few do.
How to Make Your Own
Homemade salsa is the easiest and cheapest way to get a version you can trust. Start with canned or fresh diced tomatoes, add diced jalapeño or green chilies for heat, squeeze in fresh lime juice, toss in chopped cilantro, and season with salt and cumin. That base alone makes a perfectly good salsa.
The tricky part is replacing the savory depth that onion and garlic normally provide. A few options work well:
- Garlic-infused oil: This is the most popular low FODMAP garlic substitute. FODMAPs are water-soluble but not oil-soluble, so when garlic steeps in oil, the flavor compounds transfer into the oil while the problematic carbohydrates stay trapped in the garlic clove. A drizzle stirred into your salsa adds that garlic flavor without the fructans. Stick with commercially prepared garlic-infused oil rather than making your own, since homemade versions carry a small but serious risk of botulism if stored improperly.
- Green onion tops: The green part of scallions (not the white bulb) is low FODMAP according to Monash University testing. Finely dice just the green portion and add it to your salsa for a mild onion flavor.
- Chives: Similar to green onion tops, chives provide a light onion note and are low FODMAP.
- Asafoetida powder: Also called hing, this Indian spice has a pungent, onion-and-garlic-like flavor. A tiny pinch goes a long way.
For a salsa verde variation, Monash University has published a tomatillo salsa verde recipe using about 62 grams of tomatillo per quarter-cup serving, which falls within the low FODMAP range. Tomatillos, roasted and blended with the same safe seasonings listed above, make an excellent alternative to tomato-based salsa.
Spicy Salsa and IBS Symptoms
Even if your salsa is perfectly low FODMAP, the heat level may still cause problems. Capsaicin, the compound that makes chili peppers hot, is not a FODMAP but can independently trigger symptoms in people with IBS. Research published in the World Journal of Gastroenterology found that capsaicin causes more abdominal pain and burning in IBS patients than in healthy people. This happens because capsaicin activates pain receptors in the gut lining, and people with IBS tend to have more of these receptors than average, making their intestines more sensitive to the burn.
This doesn’t mean you have to avoid all peppers. Mild salsa with just a small amount of jalapeño may be fine for you, while a habanero-heavy version could be a problem. If you’re in the elimination phase of the low FODMAP diet, start with a mild version and gauge your tolerance before adding more heat. The reaction to capsaicin varies a lot from person to person, even among IBS patients.
Serving Size Still Matters
Even with a properly made low FODMAP salsa, portion size plays a role. Tomatoes are low FODMAP at a standard serving of about 75 grams (roughly half a medium tomato), but eating a very large amount in one sitting could push you into moderate territory. For most people, a quarter cup to a third cup of salsa per serving is a comfortable amount. If you’re using your salsa as a dip with chips, you’ll likely stay well within that range naturally.